Serious question from a beginner in electronics. For reasons I do not fully understand, I have become fixated on the idea of collecting small amounts of electricity from “interesting” sources. I don’t mean “free energy”, instead, I mean things like extracting a few mV from being so close to a AM radio tower using two...
www.iloq.com for example does a lot of parasitic energy stuff. Most of the advertised things now seem to be RFID, but I think they also had locks that are powered by the key insertion.
There’s plenty of places where infrastructure power is not available and a flat battery would be a disaster. Door lock is one mundane one. Space is one more extreme one.
Is “harvesting” small amounts of electricity a fools errand?
Serious question from a beginner in electronics. For reasons I do not fully understand, I have become fixated on the idea of collecting small amounts of electricity from “interesting” sources. I don’t mean “free energy”, instead, I mean things like extracting a few mV from being so close to a AM radio tower using two...