Hello, I’m back.
1kV C0G caps in place.
Duty cycle is now 5% lower in same temp conditions. As C0G is not subject to derating or aging at high voltage (as X5R/X7R) and is more stable across temp variation, the inductor should now be the only/dominant cause of mean duty cycle variations with temperature variation.
Duty is very stable.
Hiss is lower.
Direct on screen voltage readout seems to be more stable too. Need to be monitored on a longer period.
I have stronger VHBCC-222J-01 too, will try later for fun.
My unit is online for near six months. I’m very happy with the overall result.
It’s time to add a Bosch sensor to it !