Setting to 0v

[Matthias]

this was a typo, of course I meant "maximum"

the voltage is quite stable (noise about 5mV), of course we use analogue filters behind the PWM to get a DC voltage
standard ballasts (for tubes) never had a problem
maybe you add a small capacitor < 1uF?

[g8gxp]

Well, this stuff is starting to get a bit over my head. If anybody figures out a way to get a smoother curve during power up instead of the instant on/off, let me know. I'll gladly pay someone for a fix - not really comfortable making something for microcontrolling.

Thanks