Common-mode chokes in boost converters
know that you can use common mode chokes in boost converters (joule
thieves)? Here is a circuit that can produce 5v from a 1.5v battery.
The current is something like 20mA without and the output voltage is
Here is another example that uses BJTs only and a zener.
So... you do save these common mode chokes from old SMPSUs don't you?
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