Hi
My board makes noise at input voltage 90Vac to 115Vac.
There is no noise above 115Vac.
The resistance of Rcs was changed from 300ohm to 2.7kohm, and it improved.
Is it okay to use the resistance of the Rcs as 2.7kohm?
I usually use a resistance in the 100 ohm range, but I'm worried that it's too big.
Please make sure you're all right.
Thanks