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|    sci.electronics.basics    |    Elementary questions about electronics    |    72,318 messages    |
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|    Message 71,599 of 72,318    |
|    Steve Wolf to All    |
|    Wireless phone charger    |
|    24 Feb 20 09:27:32    |
      From: stevwolf58@gmail.com              Just for fun I thought I would make a wireless phone charger. I'm not really       going to use it but I wanted to build it and just see if it actually worked.       The circuit uses two coils and a 2n222 transistor very simple.              Well I can't really get it to work maybe I could get half a volt maybe to past       through induction. Then it seems to stop. I connected my meter to the       receiving coil to test.               I was using 30 gauge wire which I had although the circuit calls for 32 gauge       that may be part of the issue.               However my question is , as I began to think about it and a little bit of       science that I know is that induction I thought had to be AC current because       there had to be movement caused by ac going up and down. The circuit as far as       my reading however puts        in 5 volts DC in the Base unit and passes it to the receiving coil. I'm not       sure if that's going to work?              The question then is, in a simple circuit can you use DC in induction.              Thanks              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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