Analysis and Simulation of a Control Method for a ZCS-QRC Buck Topology with Constant Switching Frequency

Quasi resonant converters QRC are useful in a wide range of power management applications, such as DC links, high efficiency DC-DC conversion circuits and so on. For this reason the authors investigated a possible new operation principle for a DC-DC power supply using a classic zero current switching quasi resonant converter ZCS-QRC buck topology. Beside the new detailed possible control technique for a ZCS-QRC, the authors of the paper present an analysis of the operation mode, simulation results to prove the good link between theory and practice, and also conclusions.