Method to set a switching mode for power switches when modeling the converter with combined structure and LCD-snubber circuits

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Authors: Afanasiev A. M., Golembiovskiy Yu. M.

Annotation: The article presents a method to set a switching mode for power switches applied in the pulse converters with LCD-snubbers which uses the snubber circuit factor, that allows to analyze the efficiency of switching converters operation, from the mode with «hard» switching to the quasi-resonant mode with a «soft» switching. The analysis of the switching mode effect on the losses of power in the core elements of converter with combined structure is performed using the snubber circuit factor.

Keywords: converter with combined structure, igbt, lcd-snubber, «soft» switching