I got the error in PI Expert that “The drain-source voltage is close to breakdown.”
Could you advise anything? What can the reasons of this error be?
Thank you for using Power Integrations ICs!
The VDRAIN is roughly equal to(roughly because we do set some margin) VDRAIN = VMAX +VOR.
So if you want to lower it, you either reduce the VMAX(AC input) or reduce VOR.