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Transient electrothermal simulation of power semiconductor devices

By Bin Du, Jerry L. Hudgins, Enrico Santi, Angus T. Bryant, Patrick R. Palmer and H. Alan Mantooth

Abstract

In this paper, a new thermal model based on the Fourier series solution of heat conduction equation has been introduced in detail. 1-D and 2-D Fourier series thermal models have been programmed in MATLAB/Simulink. Compared with the traditional finite-difference thermal model and equivalent RC thermal network, the new thermal model can provide high simulation speed with high accuracy, which has been proved to be more favorable in dynamic thermal characterization on power semiconductor switches. The complete electrothermal simulation models of insulated gate bipolar transistor (IGBT) and power diodes under inductive load switching condition have been successfully implemented in MATLAB/Simulink. The experimental results on IGBT and power diodes with clamped inductive load switching tests have verified the new electrothermal simulation model. The advantage of Fourier series thermal model over widely used equivalent RC thermal network in dynamic thermal characterization has also been validated by the measured junction temperature.\ud \u

Topics: TK, QA, QC
Publisher: IEEE
Year: 2010
OAI identifier: oai:wrap.warwick.ac.uk:3284

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