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Simple Inductorless Joule thief LED Flasher 7
Simple Inductorless Joule thief LED Flasher
Simple Inductorless Joule thief LED Flasher from electronics
Simple Inductorless Joule thief LED Flasher
Simple Inductorless Joule thief LED Flasher from electronics
This circuit use a capacitive “charge pump” style DC-DC boost converter to drive LEDs with forward voltages (Vf) of above 3 volts with input power voltages as low as about 60% of the LEDs Vf. The gif above shows the circuit powered by a 1.5 volt AA pulsing a white LED with forward voltage of nearly 3 volts. The circuit runs for several days on a single 3.3 F super cap charged to 2.7 volts!
Hi, what is the name of that app/software in the right?
What’s the numbers on Transistor T1 and T2(to the right) ?
Thanks for providing a schematic, I’d like to build it, but we need to know the trannies.
This is intriguing! How does the efficiency compare to similar circuits using an inductor?
I wish I had any idea at all how this works, super interesting.
Looks like an action potential
Poor unijunction transistor is turning over in its grave right now
*”i could be doing that with just one”*