Title

Active-Clamp Snubbers For Isolated Half-Bridge Dc-Dc Converters

Keywords

Active-clamp; Converter; Dc-dc; Half-bridge; Isolation; Leakage inductance; Reverse recovery; Snubber; Topology; Transformer

Abstract

In conventional isolated half-bridge dc-de converters, the leakage-inductance-related losses degrade converter efficiency and limit the ability to increase the converters' switching frequencies. In this paper, a novel active-clamp snubber circuit for half-bridge dc-dc converters is proposed to recycle the energy stored in the leakage inductance by transferring this energy to a capacitor with zero-voltage zero-current-switching switched auxiliary switches, such that body-diode conduction of primary-side main switches are prevented and primary side ringing are attenuated resulting in improved converter efficiency. Principles of operation and simulation analysis are presented and supported by experimental results that show significant improvement in efficiency. © 2005 IEEE.

Publication Date

11-1-2005

Publication Title

IEEE Transactions on Power Electronics

Volume

20

Issue

6

Number of Pages

1294-1302

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/TPEL.2005.857529

Socpus ID

28444471588 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/28444471588

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