LNK3206D Gournd drifting
In an off-line switch, is the GND generated has a floating / drifting component to it?
I am taking the AC source before the Half Bridge and dividing down to measure the amplitude and frequency.
I find that the AC varies a lot in amplitude which causing jitter in frequency because the ac crossing point is moving up/down.
My design if for 3 phases, but I have not been able to get 1 to work.