WANG Qiang, WANG You-zheng, WANG Tian-shi, et al. A Novel Single-Phase Full-Bridge Soft-Switching Inverter Including Auxiliary Circuits Parallel with Load[J]. Acta Electronica Sinica, 2020, 48(5): 1036-1040.
WANG Qiang, WANG You-zheng, WANG Tian-shi, et al. A Novel Single-Phase Full-Bridge Soft-Switching Inverter Including Auxiliary Circuits Parallel with Load[J]. Acta Electronica Sinica, 2020, 48(5): 1036-1040. DOI: 10.3969/j.issn.0372-2112.2020.05.026.
In order to optimize the efficiency of single-phase full-bridge inverter
a single-phase full-bridge soft-switching inverter is proposed. The auxiliary circuit is parallel with the load at the output end of the inverter. When the auxiliary circuit is in working state
the main switches on the bridge arm of the inverter can accomplish zero-voltage turn-on and zero-current turn-off so that the inverter can be generally used in the medium and small power field and high power field. The working process of the inverter in a switching period is analyzed. The experimental results on a 3kW prototype show that the switching devices achieve soft-switching
and the efficiency of the prototype reaches 99.1% at the rated power. Therefore
this topology is of great significance for optimizing the performance of single-phase full-bridge inverters.