Abstract

This paper presents a novel bidirectional current-fed dual inductor push-pull DC-DC converter with galvanic isolation. The converter features active voltage doubler rectifier, which is controlled by the switching sequence synchronous to that of the input-side switches. The control algorithm proposed enables full-soft-switching of all switches in a wide range of the input voltage and power without requirement of snubbers or resonant switching to be employed. Operation principle for the energy transfer in the both directions is described. Experimental results as well as basic design guidelines are presented.

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