Title

Small-signal modeling of a single-switch AC/DC power-factor-correction circuit

Authors

Authors

G. Y. Zhu; H. Wei; P. Kornetzky;I. Batarseh

Comments

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Abbreviated Journal Title

IEEE Trans. Power Electron.

Keywords

AC-DC converters; power factor correction; small-signal modeling; CONDUCTION MODE; PWM CONVERTERS; Engineering, Electrical & Electronic

Abstract

In this paper, a small-signal model for a new single-switch single-stage switched-mode power-factor-correction (PFC) converter is presented. The model is obtained by applying the small-signal perturbation technique to the circuit equations derived from the state-space averaging method. By applying the perturbation and averaging techniques over one switching cycle, the de and small-signal equivalent circuit representations of this converter are derived. The result shows that this converter exhibits the transfer characteristics of a second-order low-pass system for the output-to-input transfer function and that of a combined second-order low-pass and band-pass system for the output-to-control transfer function. The validity of the proposed mathematical model was verified by the given experimental results for a specified design example.

Journal Title

Ieee Transactions on Power Electronics

Volume

14

Issue/Number

6

Publication Date

1-1-1999

Document Type

Article

Language

English

First Page

1142

Last Page

1148

WOS Identifier

WOS:000083754800017

ISSN

0885-8993

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