I am doing a research on GaN devices and comparision of their performances in DC DC converters as compared to Si devices. The issue that I am facing is that I can't find a way to simulate them on Simulink as I want to design controllers for these circuits as well. Now, I want to know if I can simulate a buck converter which uses a GaNFET on LTspice and also make a controller for that circuit on LTspice by defining the modelled transfer function, else if there is a way to simulate GaNFETs on Simulink as I could not find any such models for Simulink.
Any/all help will be much appreciated.