Behavior modeling of magnetizing currents in switch-mode dc-dc converters

Yim Shu Lee; K. C. Wong; C. K. Ng

doi:10.1109/41.824106

Behavior modeling of magnetizing currents in switch-mode dc-dc converters

Yim Shu Lee, K. C. Wong, C. K. Ng

Division of Science, Engineering and Health Studies (SEHS)

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

This paper describes a new technique to model the behavior of the magnetizing current in a transformer-coupled switch-mode dc-dc converter. The new technique uses a virtual magnetizing winding, together with a virtual magnetizing current source, to account for the effect of the magnetizing inductance on the switching operation of the transformer. By including the effect of the magnetizing current, the behavior model of a switch-mode converter can be made more complete. The model developed is particularly useful for the analysis and low-frequency behavior simulation of complex converters such as actively-clamped converters, where the magnetizing current significantly affects the characteristics of the converter.

Original language	English
Pages (from-to)	36-44
Number of pages	9
Journal	IEEE Transactions on Industrial Electronics
Volume	47
Issue number	1
DOIs	https://doi.org/10.1109/41.824106
Publication status	Published - Feb 2000

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title = "Behavior modeling of magnetizing currents in switch-mode dc-dc converters",

abstract = "This paper describes a new technique to model the behavior of the magnetizing current in a transformer-coupled switch-mode dc-dc converter. The new technique uses a virtual magnetizing winding, together with a virtual magnetizing current source, to account for the effect of the magnetizing inductance on the switching operation of the transformer. By including the effect of the magnetizing current, the behavior model of a switch-mode converter can be made more complete. The model developed is particularly useful for the analysis and low-frequency behavior simulation of complex converters such as actively-clamped converters, where the magnetizing current significantly affects the characteristics of the converter.",

author = "Lee, {Yim Shu} and Wong, {K. C.} and Ng, {C. K.}",

note = "Funding Information: Manuscript received May 23, 1998; revised April 9, 1999. Abstract published on the Internet November 11, 1999. This work was supported by the Research Grants Council of the University Grants Committee of Hong Kong. The authors are with the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong (e-mail: enyslee@inet.polyu.edu.hk). Publisher Item Identifier S 0278-0046(00)01330-7.",

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AB - This paper describes a new technique to model the behavior of the magnetizing current in a transformer-coupled switch-mode dc-dc converter. The new technique uses a virtual magnetizing winding, together with a virtual magnetizing current source, to account for the effect of the magnetizing inductance on the switching operation of the transformer. By including the effect of the magnetizing current, the behavior model of a switch-mode converter can be made more complete. The model developed is particularly useful for the analysis and low-frequency behavior simulation of complex converters such as actively-clamped converters, where the magnetizing current significantly affects the characteristics of the converter.

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Behavior modeling of magnetizing currents in switch-mode dc-dc converters

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