由於液晶顯示器的快速發展，薄膜電晶體之液晶顯示器(TFT-LCD)將取代陰極射線管(CRT)成為桌上型電腦和電視這兩個最大顯示器市場的主流產品，當然有關於液晶顯示器背光模組採用的冷陰極螢光管之使用量亦隨之大增，為此各類相關電子安定器之研究紛至沓來；就目前所採用的冷陰極螢光燈的電子安定器之架構來看，不僅無法承受輸入電源之廣範圍變動，且亦存在開關數目較多以致增加成本之缺點，因此本論文即為此提出一新型單級升壓型冷陰極螢光燈電子安定器以改善上述之缺點。

基本上本論文之主要貢獻有四點：第一點，提出一新型單級升壓型冷陰極螢光燈電子安定器，可以承受更大的輸入電壓之變動範圍俾方便不同輸入電源之使用，改善傳統電子安定器在廣範圍輸入電壓變動時之效能。新型電子安定器為單級式，且所使用開關數目亦只有兩個，因此具有控制簡單、低成本、高效率等優點。第二點，提出一系統化設計方法，可以方便且清楚的決定各個工作點與功率級元件參數值，以改善傳統試誤法之費時費力的缺點。第三點，提出一整合型迴授控制器，可以有效控制新型電子安定器；推演出小信號模型，可藉以決定控制器的參數值與分析其穩定度。第四點，更進一步整合一叢發式調光控制器以解決冷陰極螢光管的溫度計效應，可以獲得寬廣的調光範圍。經由模擬分析與實驗結果證實，本論文所提之新型單級升壓型冷陰極螢光燈電子安定器確能達到預期之高性能低成本目標。

Due to the rapid progress of liquid crystal display (LCD), the thin film transistor (TFT) LCD market has a remarkable increase. Naturally, the corresponding necessity of the electronic ballast for the cold cathode fluorescent lamp (CCFL) as the backlight module of the LCD will increase greatly as well.
As a result, many related researches are undergoing to enhance the performance and reduce the cost of the ballast. In view of the above objectives, a novel single stage ballast topology is first proposed in this thesis such that much wider input DC voltage range can be tolerated to allow the application of different energy sources. In addition, instead of using four active power semiconductor switches, only two are required in the new topology. Hence, better efficiency and lower cost can be achieved. In addition, a design methodology is also proposed in this thesis to provide a systematic approach for designing the ballast. By this way, the conventional try and error approach can be obviated. Thirdly, an integrated closed loop controller is proposed for stabilizing the new ballast. A small signal model is also delved for derived the proper parameters of the controller without losing the stability. Finally, a burst mode dimming controller is also integrated for adjusting the light intensity with full range without incurring any temperature phenomenon. A hardware prototype is also constructed for demonstrating the feasibility of the proposed single stage ballast for the CCFL.

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