Modeling, analysis, and design criteria of actively clamped double-ended converters

Author

Lee, Yim-Shu ; Lin, Bo-Tao

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Kowloon, Hong Kong

Volume

47

Issue

3

fYear

2000

fDate

3/1/2000 12:00:00 AM

Firstpage

312

Lastpage

323

Abstract

The characteristics of actively clamped double-ended (ACDE) converters are studied. It is found that they possess interesting features such as near-zero output current ripple and require no magnetic reset winding. A low-frequency behavior model of the ACDE converter is derived, from which important relationships among output voltage V₀, input voltage V_i, and duty cycle D are obtained. When compared with other forward-derived converters, an ACDE converter has extra poles and zeros in the small-signal control-to-output and input-to-output transfer functions. The design criteria and experimental results are also reported

Keywords

poles and zeros; power convertors; transfer functions; ACDE converter; actively clamped double-ended converters; duty cycle; forward-derived converters; input voltage; low-frequency behavior model; near-zero output current ripple; output voltage; small-signal control-to-output transfer functions; small-signal input-to-output transfer functions; Circuits; Clamps; DC-DC power converters; Magnetic analysis; Poles and zeros; Power transformers; Rectifiers; Recycling; Transfer functions; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.841914

Filename

841914