Analysis and characterization of power MOSFETs for power converters energy&reliability-aware-design

This paper discusses the impact of Power MOSFETs (PMs) Capacitance-Voltage (C-V) characteristics on switching losses in power converters. A fast and robustly convergent numerical technique is adopted to analyze the sensitivity of PMs power losses with respect to their C-V shapes. Such technique helps both in identifying desirable specifications for PMs design, and in achieving appropriate selection of PMs for power converters energy&reliability aware design. The results presented in this paper, concerning loss analysis and experimental verification for a 85V to 170V@0.5A dc-dc boost converter, highlight the PMs C-V curves impact and the valuable support of the proposed technique in PMs design.