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    Please use this identifier to cite or link to this item: http://ir.lib.ksu.edu.tw/handle/987654321/7915


    Title: 伺服器並聯電源供應器模組之研製
    Design and Implementation of Parallel Power Supply Modules for Servers
    Authors: 洪賢峯(Hsien-Feng Hung)
    劉宇晨(Yu-Cheng Liu)
    羅有綱(Yu-Kang Lo)
    邱煌仁(Huang-Jen Chiu)
    Keywords: 電磁干擾濾波器
    全橋相移零電壓切換轉換器
    零電壓切換主動功率因數修正器
    自動主僕式均流控制
    EMI filter
    ZVS active PFC
    phase-shift ZVS full-bridge converter
    automatic master-slave current-sharing control
    Date: 2008-09-05
    Issue Date: 2010-01-12 14:30:39 (UTC+8)
    Abstract: 本文提出可以平均分擔負載電流的交流/直流轉換器,此
    乃考量適合應用於大電流負載且擁有較佳擴充模組彈性需求
    的伺服器電腦系統。此電源供應器結構包含前端的電磁干擾濾
    波器,可有效消除電源供應器系統端雜訊所造成之干擾問題。
    前級使用主動零電壓功率因數修正器,後級使用全橋相移零電
    壓切換轉換器,皆運用零電壓切換技術以有效降低切換損失,
    進而提升全機效率。[1]控制電路包含保護電路及自動主僕式
    均流控制電路。文中並針對主動零電壓功率因數修正器、全橋
    相移零電壓轉換器及並聯均流技術的電路架構作原理說明。最
    後設計實作出二部1 kW 並聯均流伺服器電源供應器,其輸出
    電壓為24 V,輸出電流為40 A,效率約為82 %以上(在110 V
    交流輸入),分流率為±3 %以內。
    This paper proposes an AC/DC converter with a
    load-current sharing feature. The studied converter is suitable for
    server power supplies demanding high output currents and
    flexible modulization. An EMI filter for suppressing the
    conducted noise resulting from the developed power supply is
    included at the front end, which is followed by a
    zero-voltage-switching (ZVS) active power factor corrector (PFC)
    and a ZVS phase-shift full-bridge DC/DC converter. The ZVS
    technique successfully reduces the switching losses and thus
    increases the overall efficiency. The main control system consists
    of several protection circuits and an automatic master-slave
    current-sharing controller. The operating principles for the ZVS
    PFC, the phase-shift full-bridge converter, and the master-slave
    current-sharing control are discussed. Two 1-kW prototype
    circuits of server power supplies are implemented and parallel
    operation is tested. The output voltage is 24 V, the output current
    is 40 A, and the overall efficiency is about 82% at 110V AC mains
    voltage. The error percentage of the current-sharing is less than ±3
    % of the rated output current.
    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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