一种具有低开关电压与高直流母线电压比的单开关高增益光伏微型变换器

A new soft-switched, single-switch electrolytic capacitor-less step-up dc/dc microconverter for photovoltaic applications is presented in this article. The proposed circuit is an improved coupled-magnetics based single-switch topology that has low-voltage stress across the switch compared to the high voltage dc bus level (380-400 V). The proposed circuit is able to achieve zero voltage switching t...