EMC Focused SiC Half-Bridge Modeling in the Frequency Domain: Procedure, Advantages and Limitations

Abstract:
Electromagnetic compatibility (EMC) plays an important role in modern electronics and power electronic circuits are often a major source of disturbances. This paper analyses a half-bridge as a building block for converters and inverters and discusses possibilities to simulate this circuit. First measurements validate a time domain (TD) simulation. A proposed transformation to the frequency domain (FD) results in significant reduction of simulation time. However, high quality of the results requires detailed consideration regarding the switching behavior.