Design and modeling of 200kHz 1,5kW LLC power semiconductor resonant converter

The paper deals with the design and optimization of the LLC power semiconductor resonant converter. First, the design of the power stage of LLC converter is being described, accompanied with mathematical simplification and description of the basic operation. For main circuit optimization the simulation analysis in OrCad PSPICE have been made. Consequently the design strategy for control system and regulators is described. After it, as the best solution, the hysteretic regulator in discrete form is presented and simulation analysis of control system in Matlab SIMULINK has been made.