Kapanadze Cousin - DALLY FREE ENERGY

[itsu]

Yes, i can:

Itsu

[itsu]

Zoomed in on the largest purple ripple i could find;  in above screesnhot most right one:

[verpies]

OK,  RC snubbers removed, for the rest same situation as above.

Not the same, the drain's rising voltage waveform does not appear rounded at 20μs/div anymore.

[itsu]

Pin 3 (enable) of the UCC37322 drivers connected via a 1K resistor to its Vdd (12V).

I don't think it is needed as the data sheet says:

"Enable input for the driver with logic compatible threshold and hysteresis. The driver output
can be enabled and disabled with this pin. It is internally pulled up to VDD with 100-kΩ resistor for active high operation"

Anyway,  no difference noticed from above screenshots.

Itsu

[verpies]

Zoomed in on the largest purple ripple i could find;  in above screenshot most right one:

0.5v supply ripple is not bad.  It is much smaller than any rounding, which was previously seen at the drain.
You could bypass it with additional polypropylene caps to decrease the ripple but is it worth it?