本文實現具數位控制補償迴路之電源轉換器，所提系統架構主要是由交錯式功率因數修正器與全橋相移轉換器所組成，其功能分別將系統之功率因數提升至接近1.0，並根據電子負載的電壓來決定電源轉換器的模式。其次，本文中除了說明交錯式功率因數修正器與全橋相移轉換器的動作原理，並探討與分析各別之控制模式，且完整說明系統相關參數的設計準則。再者，本文利用平均開關模型，並加入責任週期損失因子，推導出全橋相移轉換器之小訊號模型，得到輸出電壓、電流對工作週期的轉移函數，並利用此轉移函數，設計出對應之數位補償控制迴路，以完成數位化控制，再以Matlab軟體模擬其穩定度的結果。此外，所提系統是以德州儀器公司之DSP TMS320F28035為控制核心，完成數位控制之補償迴路設計。最後，將搭配數位控制器之交錯式功率因數修正器與全橋相移轉換器串聯，完成一部1kW之電源轉換器，並以各種抽載模式、負載變動及系統效率等實驗結果驗證其可行性。

A power converter with digital-controlled compensation loop is developed and implemented in this thesis. The proposed topology is composed of an interleaved power factor corrector and a full-bridge phase-shift converter. The proposed system not only increases the power factor of the system to nearly 1.0, but also determines the power converter’s mode according to the voltage of the electronic load. Secondly, the operating principle of the system, and the respective control modes are analyzed, the design criteria of the related system parameters are also completely described. Furthermore, both the average switching model and the duty cycle loss factor are used to derive the small signal model of the phase-shift full-bridge converter, and the model obtains the transfer function of the output voltage and current to the duty cycle to design the digital compensation control loop to complete the digital control, and then the Matlab software is used to simulate the system’s frequency response. In addition, the proposed system is based on TI's DSP TMS320F28035 as the controller to implement the digital compensation control loop design. Finally, the system achieves a 1 kW power converter, and the feasibility is verified by experimental results.

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