A dual-boost converter with zero voltage transition

This paper proposes a novel soft-switching dual-boost converter which is composed of two shunted elementary boost converters and an auxiliary inductor. This converter is able to turn on both the active power switches at zero voltages to reduce their switching losses and evidently raise the conversion efficiency. Since the two parallel-operated elementary boost converters are identical, operation analysis and design for the converter module becomes quite simple. A laboratorial test circuit is built and the circuit operation shows satisfactory agreement to the theoretical analysis. The experimental results show that this converter module performs very well with the output efficiency as high as 95%.