joule thief battery charger

247

04:41:25

Joule Thief used as a battery charger

published 8 years ago

leonjl283

8 years ago

So cool

VVPCEMPEROR

8 years ago

Way too cool

VVPCEMPEROR

8 years ago

And awesome

BillyT

8 years ago

You are almost there, play with the biasing and loads, here is a circuit that I did a while ago, check the differences especially when you adjust the base resistor, the load resistor and the led voltage/current specifications. http://everycircuit.com/circuit/5489344255361024

rich11292000

8 years ago

Usually around 50khz instead of .8hz. Why so?

pajaka

8 years ago

Because of the 10H primary. Normally you would get something like 10-100uH cool inductance.

rich11292000

8 years ago

I know, but the question is why not how.

pajaka

8 years ago

Why what? Higher inductance means lower frequency in thompson's law.

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