Mathematical model of the LLC resonant converter

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Authors: Stolyarova A. A., Mihalchenko S. G., Apasov V. I.

Annotation: The numerical-analytical model of the voltage regulator based on full-bridge LLC resonant converter is proposed in this paper. In the text of the article LLC converters operation algorithm on each working interval is investigated. The proposed mathemat-ical model describes key elements behavior on duty cycle and allows the study of nonlinear dynamic characteristics of these type power converters. Also, the results of mathematical and simulation the modeling main parameters of the LLC converters, which confirm the adequacy of the proposed mathematical model are given.

Keywords: llc converter, resonant circuit, mathematical modeling