本論文針對磁碟陣列準系統之備援式電源供應器各種關鍵技術進行研究。所開發的備援式電源供應器，將能夠滿足高功率因數、高效率、可模組並聯的產品需求。輸出規格如下：12V/50 A與一組待機電源5V/2A。
論文的設計規劃上，採用全橋相移式零電壓電能轉換器做為直流/直流轉換模組的主要架構，並考慮到輸入電流諧波的消除，而加入功率因數修正電路，使系統模組具有高效率、高功因的特性。前級使用主動功率因數修正器，後級使用全橋相移零電壓切換轉換器。控制電路包含保護電路及均流控制電路與熱插拔機制。文中並針對主動功率因數修正器、全橋相移零電壓轉換器及並聯均流技術與熱插拔機制的電路架構作原理說明。

This thesis aims to study redundant power supply technique for magnetic drive array system.The redundant power supply meets the needs of high power factor, high efficiency, and the availability to provide parallel modules. Its output specifications are 12V/50A, and a standby power module of 5V/2A.
The main topology adopted in this thesis is the phase-shift Zero- Voltage-Switching (ZVS) full-bridge DC/DC converter module, with the addition of a front-end power factor correction circuit for eliminating input current harmonics.The studied module system presents high power factor and high efficiency characteristics. The first stage adopts active power factor corrector, while the second stage utilizes the phase-shift ZVS full-bridge DC/DC converter. Then, the control circuit includes protection circuits, automatic master - slave current - sharing controller, and hot-swap an ORing control system. The operating principles of these circuitries are also analyzed in this thesis.

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