Hello,
I am trying to simulate a three-phase inverter using SiC MOSFETs, as shown in the schematic. I can observe the gate pulses at the u_T and u_B nodes; however, the phase voltage (phase_u) is not appearing. What changes or modifications are required to resolve this issue?
Ideally, the phase_U voltage should toggle between 0 V and 800 V, but this behavior is not observed.
High-side MOSFET is floating! Here is an example to simulate with isolated gate drive with E-source.
driving_mosfet.qsch (13.9 KB)
Or, if you are in the proof-of-concept phase, you can generally use ideal devices to simplify your simulation, as they typically run much faster. In contrast, MOSFET models include parasitic parameters and driving requirements that must be considered.
spwm.qsch (27.4 KB)