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What is it? A joule thief is a minimalist self-oscillating voltage booster that is small, low-cost, and easy to build, typically used for driving small loads. This circuit is also known by other na...Read More…
A joule thief is a minimalist self-oscillating voltage booster that is small, low-cost, and easy to build, typically used for driving small loads. This circuit is also known by other names such as blocking oscillator, joule ringer, vampire torch.
It is used to suck all the remaining energy from a not completely dead battery to illuminate the LED.
Or just as a simple LED driver to powering a white LED from a low voltage source.
This is a unique device with an onboard coil. I wanted a true, original joule thief but without winding toroid transformer
I replaced toroid transformer with PCB etched dual coil
Battery and wires are not included.
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