Resonant Full-Bridge SLR Converter
Overview
This example shows a full-bridge series-loaded resonant (SLR) DC-DC converter with capacitor snubbers on the switches.

Electrical model
A description of the series resonant converter is given in the demo model Resonant half-bridge SLR converter.
This model uses the same resonant tank with a full-bridge switch arrangement and capacitor snubbers in parallel with each switch. The switching frequency was chosen as 8 kHz to operate the converter in continuous conduction mode (CCM). The converter is operated above the resonant frequency of 5.033 kHz, so the IGBTs are switched off while carrying current. The capacitive snubbers are charged by the resonant link current and allow for zero voltage turn-off commutations of the switches.
Simulation
Run the simulation with the model as provided to view the signals and verify that the converter operates in CCM. Force the converter into discontinuous conduction mode (DCM) by reducing the switching frequency to 5 kHz.