/diy/ - Do It Yourself

>>1769502
Sounds pretty alright, you could put a small X2 cap across the bulb and that might stop the noise. Or should it be a small choke in series with it?

>>1769504
Yeah basically, but because AC is a sine wave, you often want to imitate that somehow. So they do this either with a variable duty cycle (picrel) or maybe in expensive cases throwing a big low-pass filter on it also and using feedback like some sort of class-D amp.