劉志文Liu, Chih-Wen臺灣大學:電機工程學研究所劉得民Liu, De-MinDe-MinLiu2010-07-012018-07-062010-07-012018-07-062009U0001-2807200912131500http://ntur.lib.ntu.edu.tw//handle/246246/188052本論文提出一應用於二相交錯式電壓調整器(Two-Phase Interleaved Voltage Regulator, VR)之數位控制器，首先利用狀態空間平均法推導其小訊號模型，再以此小訊號模型為基礎，使用極零點消去法來設計補償器。控制策略採用了電壓控制模式，並且感測電感電流來完成增益規劃(Gain Scheduling)功能，建立查表，使補償器之參數可依不同負載情況做調整，以增進系統的動態響應。另外，加入了自動切相(Phase Shedding)技術，控制器可依負載情況決定操作相數，如此可改善輕載效率。設計之數位控制器經由Matlab®/Simulink®模擬，確認功能正確後，以場可規劃邏輯陣列(Field Programmable Gateway Array, FPGA)實現一輸入電壓為12V，輸出電壓為1.2V之二相交錯式電壓調整器的數位控制，實驗結果驗證了本論文之控制器設計。A digital controller for a two-phase interleaved voltage regulator is presented in this thesis. To begin, the small-signal model is derived using state-space averaging method. Based on the small-signal model, the design of the compensator is accomplished through the pole-zero cancellation method. The control scheme is set at voltage mode, and the inductor current is sensed to achieve Gain Scheduling function. A lookup table is established so the parameters of the compensator can be adjusted for different loading conditions— so that the dynamic response can be enhanced. In addition, as long as the auto phase shedding technique is used, the operating phase number can be determined according to the loading condition, and the light load efficiency will be improved finally.he function of the designed digital controller is simulated and confirmed by using Matlab®/Simulink®.A digital controller for a 12V-to-1.2V two-phase interleaved voltage regulator is implemented using an FPGA(Field Programmable Gateway Array) board and the experimental results demonstrate the proposed controller design.誌謝 i要 iibstract iii錄 iv目錄 vi目錄 ix一章 緒論 1.1 研究動機與目的 1.2 研究貢獻 3.3 章節介紹 4二章 電壓調整器 5.1 發展背景 5.2 小訊號模型 10三章 數位控制器設計 16.1 系統架構 16.2 控制器設計 17.2.1 類比/數位轉換器 17.2.2 數位脈波寬度調變 17.2.3 補償器設計 19.3 增益規劃 24.4 自動切相 26四章 模擬與實驗結果 30.1 模擬結果 30.2 實驗硬體介紹 38.3 實驗結果 40五章 結論與未來研究方向 51.1 結論 51.2 未來研究方向 51考文獻 521083682 bytesapplication/pdfen-US二相交錯式電壓調整器數位控制器增益規劃切相Two-phase interleaved voltage regulatorDigital controlGain schedulingPhase sheddingthesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/188052/1/ntu-98-J96921008-1.pdf