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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/7878


    Title: 主僕式準諧振返馳式轉換器之研製
    Study and Implementation of a Master-Slave Quasi-Resonant Flyback Converter
    Authors: 顏至良(Chih Liang Yen)
    楊清吉(Ching-Ci Yang)
    許圢墿(Ting-Yi Hsu)
    羅有綱(Yu-Kang Lo)
    邱煌仁(Huang-Jen Chiu)
    Keywords: 主僕式
    準諧振
    峰值電流模式控制
    均流
    Master-Slave
    Quasi-Resonant
    Peak Current Mode Controller
    Current Sharing
    Date: 2008-09-05
    Issue Date: 2010-01-12 14:07:57 (UTC+8)
    Abstract: 本論文為研製主僕式準諧振返馳式轉換器,採用通用IC
    L6561 做電路控制並可精簡外部的控制電路。
    L6561 為峰值電流模式控制[1-3],電流模式控制具有快
    速響應之特性,其誤差放大器的輸出電壓亦可用於調整各相轉
    換器之輸出電流,使各相轉換器達到均流的目的。此種控制方
    式不僅簡單,更可使各相轉換器間達到良好的分流率。由變壓
    器之激磁電感與開關之寄生電容所產生的諧振行為,利用波谷
    控制法,可以使功率開關具有柔切的特性[4-8],能使轉換器的
    效率有效的提昇。
    主僕式準諧振返馳式轉換器的操作原理與設計考量,均
    在本論文中予以詳細分析及討論,實驗結果證明了此電路的可
    行性。
    This thesis aims to study and design a master-slave quasi-resonant
    Flyback converter. A commercial control IC L6561 is used to implement
    and simplify the control circuit. The L6561 IC is a peak current mode
    controller with fast transient response features. The error amplifier built-in
    the control IC can be used for adjusting the corresponding phase current to
    achieve current sharing functionality. The proposed control method is not
    only simple, but also can achieve well current sharing between phase
    modules. The resonant behavior between the transformer magnetizing
    inductor and switch parasitic capacitor is utilized to implement a valley
    control. Soft-switching on power switches can be achieved and the
    conversion efficiency can be then significantly improved. The operation
    principles and design considerations for the proposed master-slave
    quasi-resonant Flyback converter are analyzed and discussed in detail.
    Experiment results of a laboratory prototype are shown to verify the
    feasibility.
    Relation: 台灣電子電力研討會暨展覽會
    Appears in Collections:[電機工程系所 ] 2008第七屆台灣電力電子研討會暨展覽會

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