A 1200V/100A all-SiC power module for boost converter of EV/HEV's motor driver application

Abstract

Motor driver is one of the most important parts in EV and HEV, and power electronics device plays a dominate role in it. Silicon Carbide (SiC) power devices have shown great advantages compared with conventional Si power device for high voltage, high frequency, and high temperature applications, which shows great potential in motor driver applications. In this work, a 1200V/100A all-SiC power module is designed and fabricated. The module is verified in a 19kW boost converter under different ambient temperature, which can be used as the first stage of a motor driver. The measurement results show that this all-SiC power module has a low parasitic parameters. An operating frequency of 100kHz is utilized in the measurement, which shows great potential for the reduction of the volume of motor driver.