Components
21
Twig Components
45
Render Count
37
ms
Render Time
12.0
MiB
Memory Usage
Components
Render calls
user_box | App\Twig\Components\UserBoxComponent | 12.0 MiB | 10.71 ms | |
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Input props | [ "user" => App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } "stretchedLink" => false ] |
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Attributes | [] |
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Component | App\Twig\Components\UserBoxComponent {#2379 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +stretchedLink: false } |
user_actions | App\Twig\Components\UserActionsComponent | 12.0 MiB | 10.13 ms | |
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Input props | [ "user" => App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } ] |
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Attributes | [] |
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Component | App\Twig\Components\UserActionsComponent {#2117 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } } |
entry | App\Twig\Components\EntryComponent | 12.0 MiB | 10.08 ms | |
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Input props | [ "entry" => Proxies\__CG__\App\Entity\Entry {#1592 +user: Proxies\__CG__\App\Entity\User {#2458 +avatar: null +cover: null +email: "nilclass@discuss.tchncs.de" +username: "@nilclass@discuss.tchncs.de" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1721268563 {#3057 : 2024-07-18 04:09:23.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: true +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: false +notifyOnNewEntryCommentReply: false +notifyOnNewPost: false +notifyOnNewPostReply: false +notifyOnNewPostCommentReply: false +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#3060 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#3062 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#3064 …} +entries: Doctrine\ORM\PersistentCollection {#3066 …} +entryVotes: Doctrine\ORM\PersistentCollection {#3068 …} +entryComments: Doctrine\ORM\PersistentCollection {#3070 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#3072 …} +posts: Doctrine\ORM\PersistentCollection {#3074 …} +postVotes: Doctrine\ORM\PersistentCollection {#3076 …} +postComments: Doctrine\ORM\PersistentCollection {#3078 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#3080 …} +subscriptions: Doctrine\ORM\PersistentCollection {#3082 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#3084 …} +follows: Doctrine\ORM\PersistentCollection {#3086 …} +followers: Doctrine\ORM\PersistentCollection {#3088 …} +blocks: Doctrine\ORM\PersistentCollection {#3090 …} +blockers: Doctrine\ORM\PersistentCollection {#3092 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#3094 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#3096 …} +reports: Doctrine\ORM\PersistentCollection {#3098 …} +favourites: Doctrine\ORM\PersistentCollection {#3100 …} +violations: Doctrine\ORM\PersistentCollection {#3102 …} +notifications: Doctrine\ORM\PersistentCollection {#3104 …} +awards: Doctrine\ORM\PersistentCollection {#3106 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#3108 …} +categories: Doctrine\ORM\PersistentCollection {#3110 …} -id: 6046 -password: "$2y$13$FEroXtR95mjA6.omogLZRe7NJuWUL6hb.9a/FfXkqyIPnPgg4Apme" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#3112 …} +apId: "nilclass@discuss.tchncs.de" +apProfileId: "https://discuss.tchncs.de/u/nilclass" +apPublicUrl: "https://discuss.tchncs.de/u/nilclass" +apFollowersUrl: null +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "nilclass" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1720630912 {#3058 : 2024-07-10 19:01:52.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687291240 {#3059 : 2023-06-20 22:00:40.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 +icon: Proxies\__CG__\App\Entity\Image {#2847 …} +name: "askelectronics@discuss.tchncs.de" +title: "askelectronics" +description: """ **For questions about component-level electronic circuits, tools and equipment.**\n \n Rules\n -----\n \n 1: Be nice.\n \n 2: Be on-topic (eg: *Electronic*, not *electrical*).\n \n 3: No commercial stuff, buying, selling or valuations.\n \n 4: Be safe.\n \n --- """ +rules: null +subscriptionsCount: 1 +entryCount: 154 +entryCommentCount: 1230 +postCount: 1 +postCommentCount: 4 +isAdult: false +customCss: null +lastActive: DateTime @1729413608 {#2826 : 2024-10-20 10:40:08.0 +02:00 } +markedForDeletionAt: null +tags: null +moderators: Doctrine\ORM\PersistentCollection {#2846 …} +ownershipRequests: Doctrine\ORM\PersistentCollection {#2844 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#2849 …} +entries: Doctrine\ORM\PersistentCollection {#2850 …} +posts: Doctrine\ORM\PersistentCollection {#2853 …} +subscriptions: Doctrine\ORM\PersistentCollection {#2855 …} +bans: Doctrine\ORM\PersistentCollection {#2861 …} +reports: Doctrine\ORM\PersistentCollection {#2869 …} +badges: Doctrine\ORM\PersistentCollection {#2882 …} +logs: Doctrine\ORM\PersistentCollection {#2892 …} +awards: Doctrine\ORM\PersistentCollection {#2874 …} +categories: Doctrine\ORM\PersistentCollection {#2898 …} -id: 11 +apId: "askelectronics@discuss.tchncs.de" +apProfileId: "https://discuss.tchncs.de/c/askelectronics" +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics" +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers" +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "askelectronics" +apDiscoverable: true +apManuallyApprovesFollowers: null +privateKey: null +publicKey: null +apFetchedAt: DateTime @1727247714 {#2827 : 2024-09-25 09:01:54.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687144409 {#2828 : 2023-06-19 05:13:29.0 +02:00 } +__isInitialized__: true …2 } +image: null +domain: Proxies\__CG__\App\Entity\Domain {#1732 …} +slug: "How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +entry: Proxies\__CG__\App\Entity\Entry {#1592 …2} +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } "dateAsUrl" => true ] |
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{#2847 …} +name: "askelectronics@discuss.tchncs.de" +title: "askelectronics" +description: """ **For questions about component-level electronic circuits, tools and equipment.**\n \n Rules\n -----\n \n 1: Be nice.\n \n 2: Be on-topic (eg: *Electronic*, not *electrical*).\n \n 3: No commercial stuff, buying, selling or valuations.\n \n 4: Be safe.\n \n --- """ +rules: null +subscriptionsCount: 1 +entryCount: 154 +entryCommentCount: 1230 +postCount: 1 +postCommentCount: 4 +isAdult: false +customCss: null +lastActive: DateTime @1729413608 {#2826 : 2024-10-20 10:40:08.0 +02:00 } +markedForDeletionAt: null +tags: null +moderators: Doctrine\ORM\PersistentCollection {#2846 …} +ownershipRequests: Doctrine\ORM\PersistentCollection {#2844 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#2849 …} +entries: Doctrine\ORM\PersistentCollection {#2850 …} +posts: Doctrine\ORM\PersistentCollection {#2853 …} +subscriptions: Doctrine\ORM\PersistentCollection {#2855 …} +bans: 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true …2 } +image: null +domain: Proxies\__CG__\App\Entity\Domain {#1732 …} +slug: "How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +entry: Proxies\__CG__\App\Entity\Entry {#1592 …2} +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +isSingle: false +showShortSentence: true +showBody: false +showMagazineName: true +canSeeTrash: false +newComments: 0 } |
user_inline | App\Twig\Components\UserInlineComponent | 12.0 MiB | 0.58 ms | |
---|---|---|---|---|
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date | App\Twig\Components\DateComponent | 12.0 MiB | 0.38 ms | |
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Input props | [ "date" => DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } ] |
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Component | App\Twig\Components\DateComponent {#3135 +date: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } } |
date_edited | App\Twig\Components\DateEditedComponent | 12.0 MiB | 0.15 ms | |
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Input props | [ "createdAt" => DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } "editedAt" => DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } ] |
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Component | App\Twig\Components\DateEditedComponent {#3199 +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } } |
magazine_inline | App\Twig\Components\MagazineInlineComponent | 12.0 MiB | 0.17 ms | |
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vote | App\Twig\Components\VoteComponent | 12.0 MiB | 0.41 ms | |
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"https://discuss.tchncs.de/c/askelectronics" +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers" +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "askelectronics" +apDiscoverable: true +apManuallyApprovesFollowers: null +privateKey: null +publicKey: null +apFetchedAt: DateTime @1727247714 {#2827 : 2024-09-25 09:01:54.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687144409 {#2828 : 2023-06-19 05:13:29.0 +02:00 } +__isInitialized__: true …2 } +image: null +domain: Proxies\__CG__\App\Entity\Domain {#1732 …} +slug: "How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +entry: Proxies\__CG__\App\Entity\Entry {#1592 …2} +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } ] |
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Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +entry: Proxies\__CG__\App\Entity\Entry {#1592 …2} +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +formDest: "entry" +showDownvote: true -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} } |
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"https://discuss.tchncs.de/c/askelectronics" +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers" +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "askelectronics" +apDiscoverable: true +apManuallyApprovesFollowers: null +privateKey: null +publicKey: null +apFetchedAt: DateTime @1727247714 {#2827 : 2024-09-25 09:01:54.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687144409 {#2828 : 2023-06-19 05:13:29.0 +02:00 } +__isInitialized__: true …2 } +image: null +domain: Proxies\__CG__\App\Entity\Domain {#1732 …} +slug: "How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +entry: Proxies\__CG__\App\Entity\Entry {#1592 …2} +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } ] |
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"https://discuss.tchncs.de/c/askelectronics" +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics" +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers" +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "askelectronics" +apDiscoverable: true +apManuallyApprovesFollowers: null +privateKey: null +publicKey: null +apFetchedAt: DateTime @1727247714 {#2827 : 2024-09-25 09:01:54.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687144409 {#2828 : 2023-06-19 05:13:29.0 +02:00 } +__isInitialized__: true …2 } +image: null +domain: Proxies\__CG__\App\Entity\Domain {#1732 …} +slug: "How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697 +user: App\Entity\User {#265 +avatar: null +cover: null +email: "Stoney@aussie.zone" +username: "@Stoney@aussie.zone" +roles: [] +followersCount: 0 +homepage: "front" +about: null +lastActive: DateTime @1694781047 {#275 : 2023-09-15 14:30:47.0 +02:00 } +markedForDeletionAt: null +fields: null +oauthGithubId: null +oauthGoogleId: null +oauthFacebookId: null +oauthKeycloakId: null +hideAdult: true +showSubscribedUsers: true +showSubscribedMagazines: true +showSubscribedDomains: true +preferredLanguages: [] +featuredMagazines: null +showProfileSubscriptions: false +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: true +notifyOnNewEntryCommentReply: true +notifyOnNewPost: false +notifyOnNewPostReply: true +notifyOnNewPostCommentReply: true +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: "https://aussie.zone/inbox" +apDomain: "aussie.zone" +apPreferredUsername: "Stoney" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1694781047 {#269 : 2023-09-15 14:30:47.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } +entry: Proxies\__CG__\App\Entity\Entry {#1592 …2} +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} } |
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"$2y$13$FEroXtR95mjA6.omogLZRe7NJuWUL6hb.9a/FfXkqyIPnPgg4Apme" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#3112 …} +apId: "nilclass@discuss.tchncs.de" +apProfileId: "https://discuss.tchncs.de/u/nilclass" +apPublicUrl: "https://discuss.tchncs.de/u/nilclass" +apFollowersUrl: null +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "nilclass" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1720630912 {#3058 : 2024-07-10 19:01:52.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687291240 {#3059 : 2023-06-20 22:00:40.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 +icon: Proxies\__CG__\App\Entity\Image {#2847 …} +name: "askelectronics@discuss.tchncs.de" +title: "askelectronics" +description: """ **For questions about component-level electronic circuits, tools and equipment.**\n \n Rules\n -----\n \n 1: Be nice.\n \n 2: Be on-topic (eg: *Electronic*, not *electrical*).\n \n 3: No commercial stuff, buying, selling or valuations.\n \n 4: Be safe.\n \n --- """ +rules: null +subscriptionsCount: 1 +entryCount: 154 +entryCommentCount: 1230 +postCount: 1 +postCommentCount: 4 +isAdult: false +customCss: null +lastActive: DateTime @1729413608 {#2826 : 2024-10-20 10:40:08.0 +02:00 } +markedForDeletionAt: null +tags: null +moderators: Doctrine\ORM\PersistentCollection {#2846 …} +ownershipRequests: Doctrine\ORM\PersistentCollection {#2844 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#2849 …} +entries: Doctrine\ORM\PersistentCollection {#2850 …} +posts: Doctrine\ORM\PersistentCollection {#2853 …} +subscriptions: Doctrine\ORM\PersistentCollection {#2855 …} +bans: Doctrine\ORM\PersistentCollection {#2861 …} +reports: Doctrine\ORM\PersistentCollection {#2869 …} +badges: 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"How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697} ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } "showEntryTitle" => false "dateAsUrl" => true "showMagazineName" => false ] |
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"How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697} ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } +showMagazineName: false +showEntryTitle: false +showNested: false +level: 1 +canSeeTrash: false +dateAsUrl: true -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} -authorizationChecker: Symfony\Component\Security\Core\Authorization\AuthorizationChecker {#931 …} } |
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date | App\Twig\Components\DateComponent | 12.0 MiB | 0.13 ms | |
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Component | App\Twig\Components\DateComponent {#3828 +date: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } } |
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vote | App\Twig\Components\VoteComponent | 12.0 MiB | 0.36 ms | |
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"How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697} ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] |
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"How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697} ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } +formDest: "entry_comment" +showDownvote: true -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} } |
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"How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697} ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } ] |
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false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#253 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#249 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#238 …} +entries: Doctrine\ORM\PersistentCollection {#196 …} +entryVotes: Doctrine\ORM\PersistentCollection {#168 …} +entryComments: Doctrine\ORM\PersistentCollection {#141 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#111 …} +posts: Doctrine\ORM\PersistentCollection {#84 …} +postVotes: Doctrine\ORM\PersistentCollection {#99 …} +postComments: Doctrine\ORM\PersistentCollection {#1863 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#1479 …} +subscriptions: Doctrine\ORM\PersistentCollection {#1658 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#1868 …} +follows: Doctrine\ORM\PersistentCollection {#1917 …} +followers: Doctrine\ORM\PersistentCollection {#1601 …} +blocks: Doctrine\ORM\PersistentCollection {#1805 …} +blockers: Doctrine\ORM\PersistentCollection {#1810 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#1857 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#1860 …} +reports: Doctrine\ORM\PersistentCollection {#1791 …} +favourites: Doctrine\ORM\PersistentCollection {#2416 …} +violations: Doctrine\ORM\PersistentCollection {#1824 …} +notifications: Doctrine\ORM\PersistentCollection {#1914 …} +awards: Doctrine\ORM\PersistentCollection {#1929 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#1867 …} +categories: Doctrine\ORM\PersistentCollection {#1880 …} -id: 46201 -password: "$2y$13$KbsQPjyFVkemktpB/3eA3uhMuHlcZ0brjmS3m6.FeQjltPl37KK6q" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#1894 …} +apId: "Stoney@aussie.zone" +apProfileId: "https://aussie.zone/u/Stoney" +apPublicUrl: "https://aussie.zone/u/Stoney" +apFollowersUrl: null +apInboxUrl: 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+featuredMagazines: null +showProfileSubscriptions: true +showProfileFollowings: true +markNewComments: false +notifyOnNewEntry: false +notifyOnNewEntryReply: false +notifyOnNewEntryCommentReply: false +notifyOnNewPost: false +notifyOnNewPostReply: false +notifyOnNewPostCommentReply: false +addMentionsEntries: false +addMentionsPosts: true +isBanned: false +isVerified: false +isDeleted: false +isBot: false +spamProtection: true +customCss: null +ignoreMagazinesCustomCss: false +moderatorTokens: Doctrine\ORM\PersistentCollection {#3060 …} +magazineOwnershipRequests: Doctrine\ORM\PersistentCollection {#3062 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#3064 …} +entries: Doctrine\ORM\PersistentCollection {#3066 …} +entryVotes: Doctrine\ORM\PersistentCollection {#3068 …} +entryComments: Doctrine\ORM\PersistentCollection {#3070 …} +entryCommentVotes: Doctrine\ORM\PersistentCollection {#3072 …} +posts: Doctrine\ORM\PersistentCollection {#3074 …} +postVotes: Doctrine\ORM\PersistentCollection {#3076 …} +postComments: Doctrine\ORM\PersistentCollection {#3078 …} +postCommentVotes: Doctrine\ORM\PersistentCollection {#3080 …} +subscriptions: Doctrine\ORM\PersistentCollection {#3082 …} +subscribedDomains: Doctrine\ORM\PersistentCollection {#3084 …} +follows: Doctrine\ORM\PersistentCollection {#3086 …} +followers: Doctrine\ORM\PersistentCollection {#3088 …} +blocks: Doctrine\ORM\PersistentCollection {#3090 …} +blockers: Doctrine\ORM\PersistentCollection {#3092 …} +blockedMagazines: Doctrine\ORM\PersistentCollection {#3094 …} +blockedDomains: Doctrine\ORM\PersistentCollection {#3096 …} +reports: Doctrine\ORM\PersistentCollection {#3098 …} +favourites: Doctrine\ORM\PersistentCollection {#3100 …} +violations: Doctrine\ORM\PersistentCollection {#3102 …} +notifications: Doctrine\ORM\PersistentCollection {#3104 …} +awards: Doctrine\ORM\PersistentCollection {#3106 …} +subscribedCategories: Doctrine\ORM\PersistentCollection {#3108 …} +categories: Doctrine\ORM\PersistentCollection {#3110 …} -id: 6046 -password: "$2y$13$FEroXtR95mjA6.omogLZRe7NJuWUL6hb.9a/FfXkqyIPnPgg4Apme" -totpSecret: null -totpBackupCodes: [] -oAuth2UserConsents: Doctrine\ORM\PersistentCollection {#3112 …} +apId: "nilclass@discuss.tchncs.de" +apProfileId: "https://discuss.tchncs.de/u/nilclass" +apPublicUrl: "https://discuss.tchncs.de/u/nilclass" +apFollowersUrl: null +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "nilclass" +apDiscoverable: true +apManuallyApprovesFollowers: false +privateKey: null +publicKey: null +apFetchedAt: DateTime @1720630912 {#3058 : 2024-07-10 19:01:52.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687291240 {#3059 : 2023-06-20 22:00:40.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 +icon: Proxies\__CG__\App\Entity\Image {#2847 …} +name: "askelectronics@discuss.tchncs.de" +title: "askelectronics" +description: """ **For questions about component-level electronic circuits, tools and equipment.**\n \n Rules\n -----\n \n 1: Be nice.\n \n 2: Be on-topic (eg: *Electronic*, not *electrical*).\n \n 3: No commercial stuff, buying, selling or valuations.\n \n 4: Be safe.\n \n --- """ +rules: null +subscriptionsCount: 1 +entryCount: 154 +entryCommentCount: 1230 +postCount: 1 +postCommentCount: 4 +isAdult: false +customCss: null +lastActive: DateTime @1729413608 {#2826 : 2024-10-20 10:40:08.0 +02:00 } +markedForDeletionAt: null +tags: null +moderators: Doctrine\ORM\PersistentCollection {#2846 …} +ownershipRequests: Doctrine\ORM\PersistentCollection {#2844 …} +moderatorRequests: Doctrine\ORM\PersistentCollection {#2849 …} +entries: Doctrine\ORM\PersistentCollection {#2850 …} +posts: Doctrine\ORM\PersistentCollection {#2853 …} +subscriptions: Doctrine\ORM\PersistentCollection {#2855 …} +bans: Doctrine\ORM\PersistentCollection {#2861 …} +reports: Doctrine\ORM\PersistentCollection {#2869 …} +badges: Doctrine\ORM\PersistentCollection {#2882 …} +logs: Doctrine\ORM\PersistentCollection {#2892 …} +awards: Doctrine\ORM\PersistentCollection {#2874 …} +categories: Doctrine\ORM\PersistentCollection {#2898 …} -id: 11 +apId: "askelectronics@discuss.tchncs.de" +apProfileId: "https://discuss.tchncs.de/c/askelectronics" +apPublicUrl: "https://discuss.tchncs.de/c/askelectronics" +apFollowersUrl: "https://discuss.tchncs.de/c/askelectronics/followers" +apInboxUrl: "https://discuss.tchncs.de/inbox" +apDomain: "discuss.tchncs.de" +apPreferredUsername: "askelectronics" +apDiscoverable: true +apManuallyApprovesFollowers: null +privateKey: null +publicKey: null +apFetchedAt: DateTime @1727247714 {#2827 : 2024-09-25 09:01:54.0 +02:00 } +apDeletedAt: null +apTimeoutAt: null +visibility: "visible " +createdAt: DateTimeImmutable @1687144409 {#2828 : 2023-06-19 05:13:29.0 +02:00 } +__isInitialized__: true …2 } +image: null +domain: Proxies\__CG__\App\Entity\Domain {#1732 …} +slug: "How-to-improve-my-battery-measurement-circuit" +title: "How to improve my battery measurement circuit?" +url: null +body: """ I am powering a 5V microcontroller (arduino clone, atmega328p) using a 9V block and a buck converter. Now I want to let the microcontroller occasionally measure the battery voltage, so I can get an idea of how full it is.\n \n My first idea was to use a simple voltage divider:\n \n ![](https://discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)\n \n I’ve chosen the resistor values so that:\n \n - the voltage at the measure output is `< 1.1V`, to be able to use the 1.1V internal reference of the atmega’s ADC\n - `R1 || R2 < 10kΩ`, since the atmega datasheet says “The ADC is optimized for analog signals with an output impedance of approximately 10 kΩ or less”\n \n This is great and all, but what bothers me is that this circuit will constantly draw ~100µA from the battery.\n \n So, my next thought was to add a mosfet to the divider, to switch it on only while measuring:\n \n ![](https://discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)\n \n This is obviously bad, because now when the mosfet is off, the ADC input sees the whole battery voltage.\n \n To address that issue, I’ve added a second mosfet into the measure path:\n \n ![](https://discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)\n \n This works, and it does not draw any current, except while measuring.\n \n However, it’s quite a few parts. So I’m curious if anyone has an idea how to do this with just a single mosfet. It seems to me like it should be possible, but I haven’t figured out how.\n \n Oh, and if I’m doing something stupid here, please tell me :) """ +type: "article" +lang: "en" +isOc: false +hasEmbed: false +commentCount: 11 +favouriteCount: 17 +score: 0 +isAdult: false +sticky: false +lastActive: DateTime @1694781042 {#1526 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +adaAmount: 0 +tags: null +mentions: null +comments: Doctrine\ORM\PersistentCollection {#1727 …} +votes: Doctrine\ORM\PersistentCollection {#1733 …} +reports: Doctrine\ORM\PersistentCollection {#1719 …} +favourites: Doctrine\ORM\PersistentCollection {#1691 …} +notifications: Doctrine\ORM\PersistentCollection {#1711 …} +badges: Doctrine\ORM\PersistentCollection {#1621 …} +children: [ App\Entity\EntryComment {#1697} ] -id: 1944 -titleTs: "'batteri':5 'circuit':7 'improv':3 'measur':6" -bodyTs: "'/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':152 '/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':188 '/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':53 '1.1':69,77 '10':107 '100µa':127 '10kω':88 '5v':5 '9v':12 'abl':73 'ad':178 'adc':85,95,165 'add':137 'address':173 'analog':99 'anyon':213 'approxim':106 'arduino':7 'atmega':83,91 'atmega328p':9 'bad':156 'batteri':28,130,170 'block':13 'bother':118 'buck':16 'chosen':56 'circuit':123 'clone':8 'constant':125 'convert':17 'curious':211 'current':197 'datasheet':92 'discuss.tchncs.de':52,151,187 'discuss.tchncs.de/pictrs/image/450dc371-58d0-4eb0-8f3b-4e76bf676bf4.png)':150 'discuss.tchncs.de/pictrs/image/970e3840-fcbb-46dd-92fb-8903b89149a0.png)':186 'discuss.tchncs.de/pictrs/image/9d173f1d-8412-4129-8ae1-c549a7895107.png)':51 'divid':50,142 'draw':126,195 'except':198 'figur':239 'first':42 'full':38 'get':33 'great':113 'haven':237 'howev':201 'idea':35,43,216 'imped':104 'input':166 'intern':79 'issu':175 'kω':108 'less':110 'let':22 'like':230 'm':210,246 'measur':26,66,149,184,200 'microcontrol':6,24 'mosfet':139,161,181,225 'next':133 'obvious':155 'occasion':25 'oh':242 'optim':97 'output':67,103 'part':207 'path':185 'pleas':251 'possibl':234 'power':3 'quit':204 'r1':86 'r2':87 'refer':80 'resistor':58 'say':93 'second':180 'see':167 'seem':227 'signal':100 'simpl':48 'sinc':89 'singl':224 'someth':248 'stupid':249 'switch':144 'tell':252 'thought':134 'use':10,46,75 'v':70,78 'valu':59 've':55,177 'voltag':29,49,63,171 'want':20 'whole':169 'work':190" +cross: false +upVotes: 0 +downVotes: 0 +ranking: 1693029637 +visibility: "visible " +apId: "https://discuss.tchncs.de/post/2309537" +editedAt: DateTimeImmutable @1692947232 {#1693 : 2023-08-25 09:07:12.0 +02:00 } +createdAt: DateTimeImmutable @1692947137 {#1550 : 2023-08-25 09:05:37.0 +02:00 } +__isInitialized__: true …2 } +magazine: Proxies\__CG__\App\Entity\Magazine {#1579 …2} +image: null +parent: null +root: null +body: "increase the resistors by a factor of 100 or so and add a very small cap across the lower one. The cap inside the ADC is absolutely tiny, pF at best. So a 100nF cap would easily do the trick and supply the voltage as required." +lang: "en" +isAdult: false +favouriteCount: 1 +score: 0 +lastActive: DateTime @1694781042 {#1439 : 2023-09-15 14:30:42.0 +02:00 } +ip: null +tags: null +mentions: [ "@nilclass@discuss.tchncs.de" ] +children: Doctrine\ORM\PersistentCollection {#1580 …} +nested: Doctrine\ORM\PersistentCollection {#1583 …} +votes: Doctrine\ORM\PersistentCollection {#1582 …} +reports: Doctrine\ORM\PersistentCollection {#1589 …} +favourites: Doctrine\ORM\PersistentCollection {#1572 …} +notifications: Doctrine\ORM\PersistentCollection {#1666 …} -id: 29231 -bodyTs: "'100':8 '100nf':34 'absolut':27 'across':17 'adc':25 'add':12 'best':31 'cap':16,22,35 'easili':37 'factor':6 'increas':1 'insid':23 'lower':19 'one':20 'pf':29 'requir':46 'resistor':3 'small':15 'suppli':42 'tini':28 'trick':40 'voltag':44 'would':36" +ranking: 0 +commentCount: 0 +upVotes: 0 +downVotes: 0 +visibility: "visible " +apId: "https://aussie.zone/comment/2659403" +editedAt: null +createdAt: DateTimeImmutable @1694781042 {#1435 : 2023-09-15 14:30:42.0 +02:00 } +"title": 29231 } -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} } |
settings_row_enum | App\Twig\Components\SettingsRowEnumComponent | 12.0 MiB | 0.21 ms | |
---|---|---|---|---|
Input props | [ "label" => "Sidebar position" "settingsKey" => "KBIN_GENERAL_SIDEBAR_POSITION" "values" => [ [ "name" => "Left" "value" => "LEFT" ] [ "name" => "Right" "value" => "RIGHT" ] ] "defaultValue" => "RIGHT" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowEnumComponent {#4459 +label: "Sidebar position" +help: "" +settingsKey: "KBIN_GENERAL_SIDEBAR_POSITION" +values: [ [ "name" => "Left" "value" => "LEFT" ] [ "name" => "Right" "value" => "RIGHT" ] ] +defaultValue: "RIGHT" +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.20 ms | |
---|---|---|---|---|
Input props | [ "label" => "Dynamic lists" "settingsKey" => "KBIN_GENERAL_DYNAMIC_LISTS" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#4531 +label: "Dynamic lists" +help: "" +settingsKey: "KBIN_GENERAL_DYNAMIC_LISTS" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Rounded edges" "settingsKey" => "KBIN_GENERAL_ROUNDED_EDGES" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#4594 +label: "Rounded edges" +help: "" +settingsKey: "KBIN_GENERAL_ROUNDED_EDGES" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Infinite scrolling" "help" => "Automatically load more content when you reach the bottom of the page." "settingsKey" => "KBIN_GENERAL_INFINITE_SCROLL" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#4650 +label: "Infinite scrolling" +help: "Automatically load more content when you reach the bottom of the page." +settingsKey: "KBIN_GENERAL_INFINITE_SCROLL" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Sticky navbar" "help" => "The navbar will stick to the top of the page when you scroll down." "settingsKey" => "KBIN_GENERAL_FIXED_NAVBAR" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#4709 +label: "Sticky navbar" +help: "The navbar will stick to the top of the page when you scroll down." +settingsKey: "KBIN_GENERAL_FIXED_NAVBAR" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show top bar" "settingsKey" => "KBIN_GENERAL_TOPBAR" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#4765 +label: "Show top bar" +help: "" +settingsKey: "KBIN_GENERAL_TOPBAR" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Turbo mode (experimental)" "settingsKey" => "KBIN_GENERAL_TURBO" ] |
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Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#4821 +label: "Turbo mode (experimental)" +help: "" +settingsKey: "KBIN_GENERAL_TURBO" +defaultValue: false +reloadRequired: true } |
user_settings_row_switch | App\Twig\Components\UserSettingsRowSwitchComponent | 12.0 MiB | 0.22 ms | |
---|---|---|---|---|
Input props | [ "label" => "Mark new comments" "settingsKey" => "KBIN_MARK_NEW_COMMENTS" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\UserSettingsRowSwitchComponent {#4879 +label: "Mark new comments" +help: "" +settingsKey: "KBIN_MARK_NEW_COMMENTS" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.14 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show "Support Us" block" "settingsKey" => "KBIN_GENERAL_SUPPORT_US_BLOCK" "defaultValue" => true ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#4942 +label: "Show "Support Us" block" +help: "" +settingsKey: "KBIN_GENERAL_SUPPORT_US_BLOCK" +defaultValue: true +reloadRequired: true } |
user_settings_row_switch | App\Twig\Components\UserSettingsRowSwitchComponent | 12.0 MiB | 0.14 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show subscribed users" "settingsKey" => "KBIN_SUB_CHANNEL_USERS" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\UserSettingsRowSwitchComponent {#5000 +label: "Show subscribed users" +help: "" +settingsKey: "KBIN_SUB_CHANNEL_USERS" +defaultValue: false +reloadRequired: true } |
user_settings_row_switch | App\Twig\Components\UserSettingsRowSwitchComponent | 12.0 MiB | 0.15 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show subscribed magazines" "settingsKey" => "KBIN_SUB_CHANNEL_MAGAZINES" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\UserSettingsRowSwitchComponent {#5056 +label: "Show subscribed magazines" +help: "" +settingsKey: "KBIN_SUB_CHANNEL_MAGAZINES" +defaultValue: false +reloadRequired: true } |
user_settings_row_switch | App\Twig\Components\UserSettingsRowSwitchComponent | 12.0 MiB | 0.14 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show subscribed domains" "settingsKey" => "KBIN_SUB_CHANNEL_DOMAINS" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\UserSettingsRowSwitchComponent {#5112 +label: "Show subscribed domains" +help: "" +settingsKey: "KBIN_SUB_CHANNEL_DOMAINS" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Auto media preview" "help" => "Automatically expand media previews." "settingsKey" => "KBIN_ENTRIES_SHOW_PREVIEW" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#5168 +label: "Auto media preview" +help: "Automatically expand media previews." +settingsKey: "KBIN_ENTRIES_SHOW_PREVIEW" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Compact view" "settingsKey" => "KBIN_ENTRIES_COMPACT" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#5224 +label: "Compact view" +help: "" +settingsKey: "KBIN_ENTRIES_COMPACT" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show users’ avatars" "settingsKey" => "KBIN_ENTRIES_SHOW_USERS_AVATARS" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#5280 +label: "Show users’ avatars" +help: "" +settingsKey: "KBIN_ENTRIES_SHOW_USERS_AVATARS" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show magazines’ icons" "settingsKey" => "KBIN_ENTRIES_SHOW_MAGAZINES_ICONS" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#5336 +label: "Show magazines’ icons" +help: "" +settingsKey: "KBIN_ENTRIES_SHOW_MAGAZINES_ICONS" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show thumbnails" "settingsKey" => "KBIN_ENTRIES_SHOW_THUMBNAILS" "defaultValue" => true ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#5392 +label: "Show thumbnails" +help: "" +settingsKey: "KBIN_ENTRIES_SHOW_THUMBNAILS" +defaultValue: true +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.12 ms | |
---|---|---|---|---|
Input props | [ "label" => "Auto media preview" "help" => "Automatically expand media previews." "settingsKey" => "KBIN_POSTS_SHOW_PREVIEW" ] |
|||
Attributes | [] |
|||
Component | App\Twig\Components\SettingsRowSwitchComponent {#5448 +label: "Auto media preview" +help: "Automatically expand media previews." +settingsKey: "KBIN_POSTS_SHOW_PREVIEW" +defaultValue: false +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.14 ms | |
---|---|---|---|---|
Input props | [ "label" => "Show users’ avatars" "settingsKey" => "KBIN_POSTS_SHOW_USERS_AVATARS" "defaultValue" => true ] |
|||
Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#5504 +label: "Show users’ avatars" +help: "" +settingsKey: "KBIN_POSTS_SHOW_USERS_AVATARS" +defaultValue: true +reloadRequired: true } |
settings_row_enum | App\Twig\Components\SettingsRowEnumComponent | 12.0 MiB | 0.15 ms | |
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Input props | [ "label" => "Comment reply position" "help" => "Display the comment reply form either at the top or bottom of the page. When 'infinite scroll' is enabled the position will always appear at the top." "settingsKey" => "KBIN_COMMENTS_REPLY_POSITION" "values" => [ [ "name" => "top" "value" => "TOP" ] [ "name" => "bottom" "value" => "BOTTOM" ] ] "defaultValue" => "TOP" ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowEnumComponent {#5560 +label: "Comment reply position" +help: "Display the comment reply form either at the top or bottom of the page. When 'infinite scroll' is enabled the position will always appear at the top." +settingsKey: "KBIN_COMMENTS_REPLY_POSITION" +values: [ [ "name" => "top" "value" => "TOP" ] [ "name" => "bottom" "value" => "BOTTOM" ] ] +defaultValue: "TOP" +reloadRequired: true } |
settings_row_switch | App\Twig\Components\SettingsRowSwitchComponent | 12.0 MiB | 0.13 ms | |
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Input props | [ "label" => "Show Comment Avatars" "help" => "Display/hide user avatars when viewing comments on a single thread or post." "settingsKey" => "KBIN_COMMENTS_SHOW_USER_AVATAR" "defaultValue" => true ] |
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Attributes | [] |
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Component | App\Twig\Components\SettingsRowSwitchComponent {#5618 +label: "Show Comment Avatars" +help: "Display/hide user avatars when viewing comments on a single thread or post." +settingsKey: "KBIN_COMMENTS_SHOW_USER_AVATAR" +defaultValue: true +reloadRequired: true } |
date | App\Twig\Components\DateComponent | 12.0 MiB | 0.13 ms | |
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Input props | [ "date" => DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } ] |
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Attributes | [] |
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Component | App\Twig\Components\DateComponent {#5691 +date: DateTimeImmutable @1694781046 {#268 : 2023-09-15 14:30:46.0 +02:00 } } |
related_magazines | App\Twig\Components\RelatedMagazinesComponent | 12.0 MiB | 2.27 ms | |
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Input props | [ "magazine" => null "tag" => null ] |
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Attributes | [] |
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Component | App\Twig\Components\RelatedMagazinesComponent {#5778 +limit: 4 +tag: null +magazine: null +type: "random" +title: "random_magazines" +refreshedRandom: false -repository: App\Repository\MagazineRepository {#1370 …} -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} -twig: Twig\Environment {#1252 …} -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} } |
active_users | App\Twig\Components\ActiveUsersComponent | 12.0 MiB | 0.27 ms | |
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Input props | [ "magazine" => null ] |
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Attributes | [] |
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Component | App\Twig\Components\ActiveUsersComponent {#5843 +magazine: null -userRepository: App\Repository\UserRepository {#603 …} -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} -twig: Twig\Environment {#1252 …} -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} } |
related_categories | App\Twig\Components\RelatedCategoriesComponent | 12.0 MiB | 1.38 ms | |
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Input props | [ "magazine" => null "tag" => null ] |
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Attributes | [] |
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Component | App\Twig\Components\RelatedCategoriesComponent {#5902 +limit: 4 +tag: null +magazine: null +type: "random" +title: "random_categories" +refreshedRandom: false -repository: App\Repository\CategoryRepository {#5903 …} -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} -twig: Twig\Environment {#1252 …} -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} } |
related_posts | App\Twig\Components\RelatedPostsComponent | 12.0 MiB | 1.58 ms | |
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Input props | [ "magazine" => null "tag" => null ] |
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Attributes | [] |
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Component | App\Twig\Components\RelatedPostsComponent {#5972 +limit: 4 +tag: null +magazine: null +type: "random" +post: null +title: "random_posts" +refreshedRandom: false -repository: App\Repository\PostRepository {#1764 …} -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} -twig: Twig\Environment {#1252 …} -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} -mentionManager: App\Service\MentionManager {#1504 …} } |
related_entries | App\Twig\Components\RelatedEntriesComponent | 12.0 MiB | 1.42 ms | |
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Input props | [ "magazine" => null "tag" => null ] |
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Attributes | [] |
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Component | App\Twig\Components\RelatedEntriesComponent {#6041 +limit: 4 +tag: null +magazine: null +type: "random" +entry: null +title: "random_entries" +refreshedRandom: false -repository: App\Repository\EntryRepository {#1763 …} -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} -twig: Twig\Environment {#1252 …} -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} -mentionManager: App\Service\MentionManager {#1504 …} } |
support_us_block | App\Twig\Components\SupportUsBlock | 12.0 MiB | 0.19 ms | |
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Input props | [] |
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Attributes | [] |
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Component | App\Twig\Components\SupportUsBlock {#6110 +subject: ? App\Entity\Contracts\VotableInterface +url: ? string -twig: Twig\Environment {#1252 …} -cache: Symfony\Component\Cache\Adapter\TraceableTagAwareAdapter {#600 …} -requestStack: Symfony\Component\HttpFoundation\RequestStack {#1328 …} -partnerBlockRepository: App\Repository\PartnerBlockRepository {#6111 …} } |
featured_magazines | App\Twig\Components\FeaturedMagazinesComponent | 12.0 MiB | 0.85 ms | |
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Input props | [ "magazine" => null ] |
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Attributes | [] |
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Component | App\Twig\Components\FeaturedMagazinesComponent {#6203 +magazine: null -twig: Twig\Environment {#1252 …} -repository: App\Repository\MagazineRepository {#1370 …} } |