Investigation of the total energy losses for Si and Sic shottky diodes

Abstract EN

This research serves as basis to investigate the total energy losses in DC-DC converter circuit.

The circuit used for the investigation was the inductive load chopper circuit.

Two diodes were used one is the Silicon PiN diode (8A / 600V) the other is Silicon Carbide Schottky diode (6A / 600V).The waveforms of current and voltage diode under test (DUT) and IGBT are measured respectively and compared them with the simulation results.

The gate resistance G R was also changed to further investigate the effect of di / dt of the DUT current during turn on of the switch on the total energy losses in the system.