Measurement-based characterization method for integrated power electronics modules

A measurement-based method for high frequency characterization of active integrated power electronics modules (IPEMs) is proposed. Parasitic inductances and capacitances inside the IPEM can all be extracted using this method without breaking the structure. The linearized model includes effects of the nonlinear frequency dependencies of resistances and inductances, the structural capacitances and any ground planes. Extracted parameters are compared to those from commercial software and the results are in good agreement. A parallel resonance method is proposed for the characterization of common-mode capacitances.