DF semiconductor silicon carbide has high breakdown voltage, wide band gap, and high thermal conductivity, so SiC semiconductor devices are very suitable for applications with high power density and switching frequency, and power conversion devices are one of them. Another performance of silicon carbide components in high temperature, high pressure and high frequency makes it widely used in deep well drilling, inverters in power generation devices, energy converters for electric hybrid vehicles, and traction power conversion for light rail trains.