Chinese Oscillator and MOS FET Driver, Hardware experiment

[synchro1]

Yes i have connected one side of it to the negative of the pwr sup and also to the ground through the probe's alligator clip if this is what you mean.

Resonance must account for it. That kind of voltage is illusary.

[Jeg]

Resonance must account for it.

I'll change resonant point to lower values than 110Khz, to see its reaction. If i could step up the voltage across the 28T without raising the input voltage or the turns of the secondary, i might reach the result of the Chineese in terms of performance. Across 28T i measure 400V peak to peak, but Chineese's device might be well more than this.

[synchro1]

I'll change resonant point to lower values than 110Khz, to see its reaction. If i could step up the voltage across the 28T without raising the input voltage or the turns of the secondary, i might reach the result of the Chineese in terms of performance. Across 28T i measure 400V peak to peak, but Chineese's device might be well more than this.

The capacitor tuning for high "Q" is where you get the advantage. Do you have a tuner connected to your capacitor?

[Jeg]

The capacitor tuning for high "Q" is where you get the advantage.

Nice point!!! I just don't know how to increase the Q of the primary side when using just 5T per primary. I'll make some calcs more to see. Perhaps his ferite core is more suitable than mine's. I use just a simple yoke core.

[synchro1]

Nice point!!! I just don't know how to increase the Q of the primary side when using just 5T per primary. I'll make some calcs more to see. Perhaps his ferite core is more suitable than mine's. I use just a simple yoke core.

You need a tuner cap! There's an 8000 volt .022uf capacitor in the schematic. That's the trimmer cap! You got it to ring, but any further resonant voltage rise would be a consequence of the trimmer capacitor adjustment for "Q" in micro farads.