本論文主要實現連續導通模式之無橋圖騰柱功率因數修正器，其
為一具有輸入交流電壓 110V 和 220V、輸出直流電壓 400V，輸出
600W 的高效率電源轉換器。本文針對功率因數修正器的動作原理、
功率元件設計、回授電路設計、控制迴路訊號分析、數位控制迴路的
小訊號分析、補償器設計與分析做詳細的探討，並且以數學理論為基
礎使用 Matlab 和 PSIM 對設計的數值進行模擬，進而獲得期望的結
果。本文使用無橋圖騰柱的架構且使用碳化矽金屬氧化物半導體場效
電晶體來達到高效率的目標，相較於傳統架構的功率因數修正器，其
導通損耗較小。此外，本論文使用數位控制實現連續導通模式操作，
並提出兩種方案來因應市電頻率變化以及回授電路元件值之熱漂移
問題，進而降低線電流畸變的影響，這些方法分別為自適應三角近似
法與電流偏移自動校準技術。由實驗結果可知使用本文所提出的方法，
確實在元件值受溫度漂移和市電頻率變化時線電流總諧波失真量有
顯著的改善。此外實驗結果顯示所研製的電路在半載以上操作範圍功
率因數高於 0.98。

This dissertation mainly implements the bridgeless totem-pole power
factor corrector (PFC) operated in continuous conduction mode (CCM). It
is a high-efficiency power converter with an input AC voltage of 110V and
220V, an output DC voltage of 400V, and an output of 600W. This
dissertation focuses on the operating principle of the power factor corrector,
component design, feedback circuit design, digital control loop smallsignal analysis, and compensator design and analysis. Furthermore, Matlab
and PSIM are used to conduct simulation on the designed parameter based
on operating principles. This dissertation realizes the bridgeless totem-pole
power factor corrector and utilizes SiC MOSFET to achieve high efficiency.
Compared with the conventional PFC, the chosen structure has a lower
conduction loss. Additionally, this dissertation employs digital control to
realize CCM control. Two methods, including adaptive trigonometric
approximation and bias current automated calibration technology are
proposed to treat the changes in mains frequency and the thermal drift
problem of feedback circuit components, thereby reducing the impact of
current distortion. As the experimental results reveal, the proposed method
can significantly improve the line current harmonic distortion when the
component temperature drifts and the mains frequency changes. Moreover,
the experimental results show that the implemented bridgeless totem-pole
circuit can achieve a power factor higher than 0.98 in the operating range
above half load.

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