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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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