PWM-switch Modeling of Converters Including Semiconductor Device Non-linearities: Electrothermal Modeling

A. Ammous, Y. Ounajjar, M. Ayedi, and F. Sellami (Tunisia)


PWM-Switch, Averaging of Switching Devices, Non-Ideal Model.


The proposed non-ideal PWM-switch model is a useful method for modeling pulse width modulated converters operating in the continuous conduction mode. The main advantages of the proposed averaged model are the takes into account of the non-linear effects of power devices and the possibility to estimate the dissipated power in the different circuit devices. The proposed model can be applied to bi-directional converters and allows the electrothermal simulations of the power electronic system. A simple technique to evaluate the different static and dynamic parameters of the devices, is presented.

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