LTspicePowerSim

Phase-shifted full bridge — fixed phase

LTspicePowerSim's 400 V to 12 V phase-shifted full bridge, its legs held at the phase its loop settles to.

Press Run: the example simulates in your browser. Open and simulate takes it to the full app, where you can change it.

Try this

Lower the phase shift from 110.6° to 90° and watch the output fall from 12 V to 9.8 V. Then press Run again.