Cannot identify best method to correctly value/size of the series capacitor for the primary winding in voltage control mode. We are seeing failures when load is close to short with a series film capacitor rated at 470nF but see significant improvement with a higher value of 2.2uF. The issue became more noticeable when MOSFETS with lower input/output capacitance where implemented. Is there a white paper available describing the relationship of the below series capacitor (see attached schematic) to MOSFET parasitic and T10 inductance?
much thanks