How do I make a 3.7v to 10000v??

Thread Starter

Syed Ahmed

Joined Dec 5, 2022
2
Screenshot_20221205-221655~2.png
Here he has given primary coil turns alone but number of turns in secondary is not mentioned. What should be the turns in secondary?
 

MisterBill2

Joined Jan 23, 2018
18,176
The oscillator circuit shown will have a spikey waveform that might reach a few thousand volts. But looking at the photo there are not 81,000 turns in the secondary winding. And the voltage is not nearly 10,000 volts, even open circuited. Then consider that 10,000 volts at ONE Milliamp is TEN WATTS, and not likely that the USB connection can supply quite that much, or more, if the actual efficiency of the circuit is less than 100%.
 

BobTPH

Joined Jun 5, 2013
8,813
Yeah, I think the 81000 turns would be only true if it was a sine wave oscillator. An oscillator that has a fast collapse would require fewer turns, I think.
 

MisterBill2

Joined Jan 23, 2018
18,176
Yeah, I think the 81000 turns would be only true if it was a sine wave oscillator. An oscillator that has a fast collapse would require fewer turns, I think.
Certainly it will not be a nice sine wave, but no telling how spikey it may be.
And what is the intended purpose of this supply???
 

MisterBill2

Joined Jan 23, 2018
18,176
Once again I am asking what the purpose of the power supply. I have one with a transformer similar to the photo in post #1, it was for the back-lite of a big screen TV. It does produce quite a few hundreds of volts.
But why trust what you see on the cartoon channel yootoob.
 
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