I’m trying to simulate a DC-DC transformer that operates with resonant transitions, similar to a phase-shifted full bridge design.
The FETs are super-junction types with very non-linear drain capacitance. The shape of the resonant transition affects the transfer characteristics of the circuit so it’s important to model this capacitance. Ideal switches won’t work.
I have done this in SPICE with Infineon’s models, but it doesn’t seem possible to accurately simulate resonant circuits with non-linear capacitance, in PSIM.
Also, the FET body diode recovery similarly affects the operation of the circuit but how to model it?