I am trying to simulate a phase shifted full bridge converter in LTspice. I had already simulated it in MATLAB Simulink and obtained the desired results, but I am redoing it in LTspice to include the effects of non-ideal components.
In order to avoid the pulse generation, I imported the switching pulses datapoints from Simulink. I have thoroughly checked it and there's no issue with my switching pulses. However, the same circuit in LTspice behaves very weirdly.
This is my model:
First of all the current on primary is weirdly high, around 3kA where as it is 25A peak in Simulink. The current wave on primary side is as shown below:
This is the output DC waveform (I am expecting a stable DC of around 85V as I had obtained in Simulink.)
I suspect it is an issue with the transformer, but I am not able to pin-point it exactly. Any suggestions are greatly appreciated.