本論文提出一無橋式倍壓升壓型功率因數修正器，與傳統倍壓型交流-直流轉換器相比，本論文所提出之無橋式功率因數修正器，具有減少元件、簡化回授取樣、提升電路效率等優點。本文所提出之無橋式倍壓升壓型功率因數修正器係利用數位式平均電流控制法分別控制輸入交流電之正負半週而達到功率因數修正，並以倍壓電路接於輸出端，其輸出電壓增益為一般升壓型交流-直流轉換器的二倍，使電路能應用於高電壓場合。論文並針對各元件進行損失推導，並與實驗結果相比以確認損失推導之準確性。本文利用數位控制晶片TI TMS320F28335實現一輸入交流電壓110V，輸出直流電壓400V至700V且輸出功率600W之無橋式倍壓升壓型功率因數修正器，經實驗結果證實本論文架構之可行性，電路於不同輸出電壓，全載的功率因數與輸入電流總諧波失真皆可符合國際規範，且轉換器最高轉換效率可達95.75%。

A bridgeless voltage-doubler boost converter for power factor correction is proposed in this thesis. The proposed circuit has several advantages over the conventional voltage-doubler AC to DC converter such as reducing the component, simplifying feedback circuit, improving conversion efficiency, etc. The proposed converter uses digitalized average current control method to control the AC input voltage in positive and negative half-cycle, respectively, to achieve power factor correction. The voltage-doubler circuit is installed at the output terminal. Therefore, the voltage conversion gain of the proposed circuit is twice than the conventional boost AC to DC converter. For this reason, the proposed circuit has great potential to be used for high voltage applications. Using the power loss calculation model in this thesis can analyze each component. The conversion efficiency can be determined from the power loss calculation model and the experiment results. TI TMS320F28335 is used in this thesis and implemented the proposed converter with an AC input voltage of 110V, DC output voltages between 400V to 700V and output power of 600W. Finally, the validity of proposed converter is identified in this thesis. Experimental results confirm that the power factor and total harmonic distortion of input current of proposed converter can conform the requirements of international regulations at whole load. In addition, the maximum conversion efficiency of 95.75% can be achieved.

論文審定書 i
誌謝 ii
摘要 iii
Abstract iv
目錄 v
圖目錄 vii
表目錄 xi
第一章 緒論 1
1-1研究背景 1
1-2研究動機 2
1-3論文大綱 3
第二章 功率因數修正器與倍壓電路簡介 4
2-1功率因數與諧波失真定義 4
2-2功率因數修正器操作模式與控制方法 7
2-2-1功率因數修正器操作模式簡介 7
2-2-2功率因數修正器控制方法 8
2-3功率因數修正器架構 11
2-3-1橋式功率因數修正器 11
2-3-2無橋式功率因數修正器 21
第三章 無橋式倍壓升壓型功率因數修正器 26
3-1 無橋式倍壓升壓型功率因數修正器電路動作模式分析 30
3-2 無橋式倍壓升壓型功率因數修正器損失估算 36
3-3 電路設計及周邊電路 40
3-4 程式設計流程 49
第四章 實驗結果 51
4-1實測波形 52
4-2實測結果曲線圖 67
4-3 無橋式倍壓升壓型功率因數修正器損失計算 73
第五章 結論與未來展望 86
5-1結論 86
5-2未來展望 86
參考文獻 87

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