Simple Joule Thief using:
- a chinese step-up booster
- 3x850V capacitors tested with multiple values and all works connected in parallel
- a flashlight tube starter (starter formed by a gas lamp and a capacitor)
- a 2.5v or 4v battery to start the booster
Very much attention because the circuit has parts under HV !!
https://www.youtube.com/watch?v=mNdPOJqM8DI
https://www.youtube.com/watch?v=BV-87dlNvPQ
https://www.youtube.com/watch?v=QIG_g4PT5aM
the device is a prototype I didn't test this for endurance
i put a light bulb there optional for my safety in case of circuit overload
the circuit is made only for test / demo, the cable connectors are not for HV
Thanks ;)
https://www.youtube.com/watch?v=mNdPOJqM8DI
I managed to get the voltage of 220 V and turn on a light bulb at 220 V. I got the voltage of 220 V in the area of the circuit protection light bulb which was used as protection against circuit overload. I also managed to start the circuit with 2 AA 1.5 V batteries of course at a lower power compared to 4 V. I repeat, the whole circuit is a voltage booster based on a cheap Chinese toy that is powered at low voltages but provides high voltage in circuit. Watch the video:
https://www.youtube.com/watch?v=ESTaRWu6haY
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It is not a Joule Thief.
Converting few voltts to a few hundreds Volts at some microamps.
I can't see any "gain" in that circuit.
Cheers,
Pix
Today I reached 900 volts with 4 volts battery and successfully power up 2 x 220 volts light bulbs each at 11 Watts. The circuit can support more watts but I work on a stable solution including a transformer. The circuit can also recharge the battery and make a regenerative circuit.
Watch video:
https://www.youtube.com/watch?v=JKuz1CZwNDs
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That's what boost converters do :)
https://www.youtube.com/watch?v=qDeQK5y6rwY