Discussion on Electromagnetic Coupling Interference of Sensitive Chip Caused by SiC Modules

This paper discusses the electromagnetic coupling problems in the inverter system based on silicon carbide(SiC) device. The coupling mechanism is established on the basis of the dipole radiation theory. Then, the model of inverter system with the enclosure, SiC module and sensitive chip is constructed. By using commercial software CST, the radiation electromagnetic coupling interference of sensitive chip caused by SiC module in the inverter system is obtained.