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A Four-Phase Forward Converter Using an Integrated Transformer

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4 Author(s)
Wong Leung-Pong ; Hong Kong Polytech Univ., Kowloon ; Lee, Y.-S. ; Chow, M.H.L. ; Cheng, D.K.-W.

The interleaved converter topology has attractive features that include high output current, small output-current ripple, and fast transient response. In this paper, an interleaved four-phase forward converter using an integrated transformer is proposed for telecommunication and computer applications. The proposed converter requires only one integrated transformer instead of four step-down transformers. The z-parameter (gyrator) model and the equivalent-circuit model of the integrated transformer are derived. The circuit operation and design criteria are described. Theoretical analyses are verified by simulated and experimental results.

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:55 ,  Issue: 2 )

Date of Publication:

Feb. 2008

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