Novel zero-current switching current-fed half-bridge isolated Dc/Dc converter for fuel cell based applications

This paper presents a novel zero-current switching (ZCS) current-fed half-bridge isolated dc/dc converter. It is a potential topology for front-end dc/dc power conversion for fuel cell inverters. This proposed converter is unique, not reported in literature and provides a simple solution to switch turn-off problem with ZCS without increase in components count. This will lead to reduced size, lower cost and higher efficiency. Analysis, design and simulation results of the proposed converter are reported in this paper. A comparison with existing active-clamped ZVS current-fed half-bridge converter has been illustrated.

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