Analysis and Design of Single Stage LLC Resonant Converter with High Power Factor

摘要

A novel single stage LLC resonant converter with high power factor is proposed in this paper. The basic principle of single stage LLC resonant converter with high power factor is analyzed. The design consideration of this converter is illustrated for ensuring the voltage gain of the converter always meeting the requirements of high power factor during half line cycle. Finally, a design example of 100W single stage LLC converter prototype is established to verify the theoretical analysis.