Investigation of the Total Energy Losses for Si and Sic Shottky Diodes

Abstract

This research serves as basis to investigate the total energy losses in DC-DCconverter circuit. The circuit used for the investigation was the inductive loadchopper circuit .Two diodes were used one is the Silicon PiN diode (8A/600V) theother is Silicon Carbide Schottky diode (6A/600V).The waveforms of current andvoltage diode under test ( DUT) and IGBT are measured respectively andcompared them with the simulation results. The gate resistance G R was alsochanged to further investigate the effect of di/dt of the DUT current during turnonof the switch on the total energy losses in the system.