A new DC/DC converter integrating a full-bridge circuit and a half-bridge pulse-width circuit is studied to realize the advantages of a wide range of zero-voltage switching (ZVS) and less circulating current loss. A half-bridge converter is connected to power switches on the lagging-leg of full-bridge converter to achieve a wider range of ZVS to overcome the disadvantage of narrow ZVS range in conventional full-bridge converter. The output side of half-bridge circuit is linked to the secondary side of the full-bridge converter to decrease the primary circulating current of the full-bridge converter. Therefore, the conduction losses due to the high circulating current in conventional full-bridge converter are reduced. The theoretical analysis is discussed in detail and the effectiveness of the proposed converter is verified by the experimental verifications with a 1440[Formula: see text]W prototype.
Discussion(0)
No comments yet. Be the first to comment.