Abstract
Abstract: In this paper, a new electro-thermal averaged model of PWM switching cell is presented. The main advantages of the proposed averaged model are that takes into account the nonlinear effects of semiconductor devices their electrical inertia and self-heating. It is useful in determining the device’s heat generation, junction temperature as well cooling performance of the connected heat sinks. The proposed electro-thermal model is general and can be applied to different DC/DC and DC/AC converters. The accuracy of the model in a simulation of the temperature dependence is verified through SABER simulation for the Buck converter and one-leg inverter.
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