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Solid state Tesla coil circuit? Answered

In this SSTC circuit from Uzzors2K I am a bit confused were the 12V and ground actually connect to seeing that this is a AC circuit?

Also seeing as the AC is immediately rectified (I think you can do it with a bridge rectifier) is it possible to power it off DC?




Best Answer 7 years ago

It is  "you understood"  there is a 12VDC supply ( not shown )  providing the
Phase Locked Loop DC power.
Just as it is  "you understood"  there is a Tesla Secondary coil
( also not shown ).

The PLL drives the SSTC mosfet gates through
the little 1:1:1 pulse transformer.


Ok, I was unsure because there is no mention of this in the circuit description and the photos of it didn't show anything either. What current should the 12V power source be?

Where there is the 400V 5A diode can you have a bridge rectifier instead?

Good, you should ask, the PLL CD4046 probably under 50 ma, However
the 37322 and 37321driver ICs are ±9A capable and will take chunks
out of the 12VDC bus supply disrupting the PLL IC.
( you can use a 12 Volt  2.5 Amp power supply )
Unless you add a 25V  470 uF electrolytic and a 50V 1uF film capacitors
right next to the drivers !

If you want to, but the bridge rectifier Must also be 400VDC 5ADC capable !

You could use the - ---|>|---  + of a 200VDC 2.5ADC bridge.



So basically if I can get a 250V constant DC power supply to this it will still work?

A qualified yes.
The the SSTC author said: it took him several weeks of trying
to make it work.
What if pulsating DC was a necessary requirement ?!

Another caution the stated frequency of 530 KHz is low RF
it may not all flow over your skin.