Abstract
This paper presents a novel DC transformer based on two dual switches push–pull DC converters, whose output voltage is not regulated. It has no output filter and runs under near 100% duty ratio. Zero voltage switching (ZVS) conditions and higher efficiency may be easily got, and the bridge arm shoot-through problem is not exist. In this paper, the principle of the transformer is analyzed in detail including output-input characteristics and ZVS conditions. At last, the experiment results are done to verify the performance of the proposed transformer in laboratory.KeywordsDC transformer ZVS Push–Pull converter DC converter
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