Soft-switching design and implementation of four-switch buck-boost converter

This paper focuses on the four-switch Buck-Boost converter and proposes an efficient control strategy based on soft-switching technology. Through the analysis of the converter's topology and operating principle, a soft-switching control method is designed, achieving Zero Voltage Switching (ZVS) and significantly improving the converter's efficiency. Compared with the traditional four-switch Buck-Boost converter, the designed converter demonstrates a significant increase in efficiency, reaching 96.2%. This study provides theoretical foundations and technical support for efficient energy conversion and optimization design in DC-DC converters.