A Four-Phase Forward Converter Using an Integrated Transformer
Wong Leung-Pong
Lee Yim-Shu
Chow, M.H.L.
Cheng, D.K.-W.
Hong Kong Polytech Univ., Kowloon;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb. 2008
Volume: 55,
Issue: 2
On page(s): 817-831
ISSN: 0278-0046
INSPEC Accession Number: 9748430
Digital Object Identifier: 10.1109/TIE.2007.911910
Current Version Published: 2008-01-31
Abstract
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.
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