Abstract
The traditional dual switch forward converter has a very large filter element and all the diodes on the primary and secondary sideshow the problem of reverse recovery and voltage oscillation. Therefore, this paper proposes a novel dual switch DC/DC converter with only one capacitor as the output filter, which reduces the number of magnetic elements and improves the power density. Besides, zero current turned on of main switches and zero current turned off of all diodes is achieved to solves the problem of parasitic oscillation and reverse recovery of the diodes. In this paper, the detailed analysis of the dual switch converter’s operating principle and characteristics are analyzed. Finally, according to the proposed converter, a prototype has been established in the lab, and the experimental results verify the validity of the analysis.
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