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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/9746


    Title: DYNAMICS ANALYSIS OF LFR MODEL FOR A SINGLE-STAGE HIGH POWER FACTOR CORRECTION DIAGONAL HALF-BRIDGE FLYBACK AC/DC CONVERTER
    Authors: 楊松霈
    Sung-Pei Yang
    Jong-Lick Lin
    Chien-Yang Chen
    Contributor: 電機工程系
    Keywords: diagonal half-bridge flyback converter
    single-stage converter
    high power factor correction (HPFC)
    LFR model
    Date: 2009-12-21
    ISSN: 0253-3839
    Issue Date: 2010-04-21 15:58:22 (UTC+8)
    Abstract: By means of a graft scheme, a buck-boost cell and a wide range diagonal halfbridge
    flyback cell are combined to create a novel single-stage high power factor
    correction (HPFC) diagonal half-bridge flyback ac/dc converter in this paper. When
    both of the two cells operate in discontinuous conduction mode, the proposed converter
    exhibits high power factor and low bulk capacitor voltage stress independent of
    the load variations. Based on the Loss-Free Resistor (LFR) model, a new technique,
    referred to as ac-dc balancing method, is also proposed. It is useful to determine the
    dc values, voltage ripples, and phase angle shifts of the bulk capacitor and output
    voltage of the converter. Moreover, the component values are well designed according
    to the operation conditions and design specifications of the converter. Finally, a
    prototype of the proposed converter with output voltage 48 V and power 100 W is
    built to test the theoretical analysis. It is successfully validated by IsSpice simulations
    and experimental results.
    Relation: Journal of the Chinese Institute of Engineers, Vol. 32, No. 4, pp. 555-567 (2009)
    Appears in Collections:[電機工程系所] 期刊論文

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