本論文旨在研製以數位控制實現具有高功率因數、低諧波及高 效率之數位控制雙相交錯式升壓型功率因數修正器。控制方法採用 固定切換頻率及平均電流控制模式使輸入電壓與輸入電流相位同相，以達到高功率因數與提升轉換效率之目的。雙相交錯式架構由兩組 升壓型轉換器操作，不僅降低輸入與輸出電流漣波，且可降低輸入 電流諧波，更可選用較低規格之功率元件，功率密度與輸出功率也 可大大的提升。電路實作以德州儀器TMS320X28035微處理器為控制核心，以數位方式實現平均電流控制模式，數位式控制相較於類比式控制電路具備設計性彈性、可程式化、可靠度高且不易受環境溫度變化影響等優點。本論文完成一1kW數位交錯式升壓型功率因數修正器，其輸入交流電壓以市電110Vrms與220Vrms，輸出電壓為380 V，最大輸出電流為2.632A。

This thesis presents the design and implementation of a two-phase digitally-controlled interleaved boost power factor corrector (PFC) with high power factor (PF) and high efficiency. Fixed switching frequency and average current mode control are used to reduce input current harmonics and reshape the input current to be sinusoidal and in phase with the input voltage. Therefore, high power factor and conversion efficiency can be fulfilled. A two-phase interleaved topology has lower ripple currents and input current harmonic distortion. Therefore, the sizes of power components can be smaller and the power density can be higher. A TI DSP chip, TMS320X28035, is applied as the main controller to fulfill the average-current mode control. Compared with its analog counterpart, a digital controller features flexibility through programmability, higher reliability, and better noise and temperature immunity. Finally, a 1kW DSP-based interleaved boost PFC is implemented with an input voltage of 110 Vrms and 220 Vrms, an output voltage of 380 V, and the rated output current of 2.632 A.

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