本論文探討新型單相升壓型功因校正電路的研製，一般的功因校正器需要三個偵測電路，分別為：輸入電壓偵測電路、電感電流偵測電路、及輸出電壓偵測電路，導致電路成本高、且體積大。為了改善上述缺點，本文提出兩種新型不需電感電流偵測元件的功因校正電路，方法一使用電感電壓估測法達成功因校正，將輸入電流諧波由(無控制下)100%降至(控制後)11.1%，方法二使用電感電流估測法達成功因校正，將輸入電流諧波由(無控制下)100%降至(控制後)8.2%。
為了改善動態響應，文中探討輸出電壓預測型控制器與電感電流預測型控制器，分別改善輸出電壓暫態響應以及電感電流追蹤能力。
本文使用德州儀器所生產的數位訊號處理器TMS320F2808作為功因校正電路的控制核心，配合周邊硬體電路達成相關的控制。文中研製400瓦特，50kHz切換頻率的單相交流110伏特/直流300伏特功因校正器。相關實驗結果，說明本文所提方法的可行性及正確性。

This thesis investigates the implementation of a new single-phase power factor corrected circuit. Generally speaking, a normal power factor correction (PFC) requires three main sensing circuits: the input-voltage sensing circuit, the inductor-current sensing circuit, and the output-voltage sensing circuit. As a result, the PFC circuit has high cost and large volume. To solve these disadvantages, this thesis proposes two new-type inductor current sensorless methods. Method 1 uses the inductor voltage estimation to reach PFC control, which can reduce the input current harmonics from (uncontrolled) 100% to (controlled) 11.1%. In addition, method 2 uses the inductor current estimation to reach PFC control, which can reduce the input current harmonics from (uncontrolled) 100% to (controlled) 8.2%.
To improve the dynamic responses, in this thesis, the output voltage predictive controller and the inductor current predictive current controller are proposed to individually improve output voltage transient responses and the inductor current tracking ability.
A digital signal processor, type TMS320F2808, is used as the control centers of the PFC circuit and executes the related control algorithm to control the hardware circuit. A 400 watt, 50kHz switching frequency, single-phase AC 110V/DC 300V PFC circuit has been implemented. The measured results validate the feasibility and correctness of the proposed methods.

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