This is a very basic question, just wanted to know, can we have a ground plane for input section of the power integration part based power supply. Input section meaning, ac-dc conversion, swithing section untill the transformer primary and the bias??? can all have ground plane with its net connected to the HVDC- ??
In case if we cannolt have, can we know is there any specific reason for why we cannot have.
Herewith sending pics of component side layout and solder side layout.