Superiority of Full SiC Interleaved PFC Module in Radiated Noise Comparison with Hybrid SiC Module

Abstract:
SiC of WBG devices is known as high speed switching device and it is applied to PFC operation due to its high-speed controllability. On the other hand, conducted and radiated noise should be concerned depending on various use with small power inverter based on either or both of CISPR and IEC. In general, PFC operation performs less conducted noise than normal rectifier, but radiated noise has less researched. This paper describes superiority of full SiC interleaved PFC operation compared to hybrid SiC interleaved PFC from the point of radiated noise with evaluations result of magnetic field visualization and conduction current dependency.