A Very Small Wireless Power Transfer Receiver Circuit - Three Components
3,608 views · Published 3 July 2014 · 2:12 · Indexed 25 October 2026
Channel: patrickikis · 2014 · Science & Technology
The transmitter is much more complicated, but I was able to pull power from the transmitter using only an inductor (which acts as a poorly matched receiver coil), a diode (which acts as a half-wave rectifier to remove the negative swing of the received AC waveform), and a red 3mm LED (A visual indicator). If I added a 10-100uf capacitor and a 470R resistor, I could improve this circuit greatly, but I wanted to make the circuit as small as possible. In any case, it isn't an efficient circuit. It is interesting though. Check us out at: http://www.engineeringshock.com/ http://www.paintballprops.com/ http://electroniclessons.com/
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