Dead car plasma unit (fixed) with schematic

My guess at what was wrong with this unit was completely wrong. It's as if they repurposed an existing circuit design and I initially thought they were trying to run a dielectric barrier plasma generator from DC.

In reality the fault was with component tolerances - possibly off-tolerance transistors. But having tested the transistors on a tester which identified then correctly and gave a plausible gain, I had a wild goose chase of component swapping.

Once I got it going I then found it did kinda work, but not as well as it should have due to the weird choice of output circuitry.

I get the feeling this is a clone of a clone with the factory not quite understanding the operation.

On a plus note, it's not one of the completely fake ones with a blue LED and fake circuitry. And we did get to do a very deep dive into the circuitry of this novel device.


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