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

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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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