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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/7904

    Title: 低壓大電流輸入推挽式轉換器研製
    Study and Implementation of a Low-Input-Voltage and High-Input-Current Push-Pull Converter
    Authors: 曾柏榮(Po-Jung Tseng)
    柯祈佑(Ci-You Ke)
    羅有綱(Yu-Kang Lo)
    邱煌仁(Huang-Jen Chiu)
    Keywords: 推挽式轉換器
    Push-pull converter
    low input voltage and high input current
    Date: 2008-09-05
    Issue Date: 2010-01-12 14:19:22 (UTC+8)
    Abstract: 本文主要研製一台1200W輸出的DC/DC 轉換器,採用的
    功率,以提昇轉換器效率。最後並實作一部1200W 之推挽式
    This thesis mainly studies and implements a 1200-W DC/DC
    push-pull converter. The circuit analysis of a push-pull converter
    is discussed. The presented converter uses the battery as the
    power source, such that for high power output and low input
    voltage, its input current will be extremely large. For a
    conventional push-pull converter, the primary leakage inductance
    of the transformer will cause a very high voltage spike due to hard
    switchings of the switch devices. To solve this problem, a snubber
    circuit must be added, meaning that the power loss in the snubber
    circuit consequently decreases the overall converter efficiency. By
    using the input inductor, the resonant capacitor and the primary
    and secondary leakage inductors of the transformer to form a
    resonant tank, the switch can be turned off at its lowest current.
    Therefore the voltage spike of the switch is reduced and the
    power loss of the snubber circuit is diminished.
    Design issues of the presented push-pull converter are
    presented in this thesis. By setting the input inductance and the
    resonant capacitance, other component parameters can be
    calculated. Finally, a 1200-W push-pull converter is implemented.
    Experiments are conducted to verify the heoretical analysis.
    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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