定電流輸出之功率因數修正器研製

Design and Implementation of a Power Factor Corrector for Constant Output Current

施宏輝(Hong-Huei Shih)

指導教授 ： 歐勝源

國立臺北科技大學/電資學院/電力電子產業研發碩士專班/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00080

摘要

本論文主旨在研製定電流輸出之功率因數修正器，並針對其種類及控制策略進行分析與比較，最後以升壓式轉換器作為主電力電路架構，採用固定切換頻率及平均電流控制模式，以降低輸入電流諧波，並使輸入電流與電壓同相位，達到定電流輸出及單一功率因數修正之目的。
在實作上以UC3854A做為控制IC，研製一200W的定電流輸出之功率因數修正器。實驗結果驗證了所採取控制技術之正確性與可行性，同時也提及後續可能的研究方向，以期進一步提高功率及效率。

關鍵字

功率因數修正器 ； 升壓式轉換器 ； 平均電流控制模式 ； 定電流

並列摘要

This thesis focuses on the design and implementation of a power factor corrector (PFC) for constant output current. Various types of PFC topologies and several control schemes are also discussed and compared. Finally, the boost converter and the average current mode control with a constant switching frequency are adopted. The main objective is to reduce the input current harmonics and achieve constant output current with a unity power factor.
A 200W prototype PFC with constant output current is implemented using UC3854A control IC. Satisfactory experimental results confirm the validity and feasibility of the adopted scheme. Potential future works are mentioned to further improve the power level and conversion efficiency.

並列關鍵字

Power Factor Corrector ； Boost Converter ； Average current mode control ； Constant current

參考文獻

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