研究生: |
陳嘉坤 Chia-Kun Chen |
---|---|
論文名稱: |
應用電感均流電路之冷陰極螢光燈管驅動電源研製 Study and Implementation of a CCFL Driving Inverter Applying Inductor Current Balance Circuit |
指導教授: |
羅有綱
Yu-kang Lo |
口試委員: |
邱煌仁
Huang-jen Chiu 劉益華 Yi-hua Liu 歐勝源 Sheng-yuan Ou |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2009 |
畢業學年度: | 97 |
語文別: | 中文 |
論文頁數: | 113 |
中文關鍵詞: | 冷陰極螢光燈管 、換流器 、電感均流 |
外文關鍵詞: | CCFL, Inverter, Choke Balancer |
相關次數: | 點閱:230 下載:1 |
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本論文的目標為研製一台以全橋架構搭配電感均流電路的冷陰極燈管驅動電源。由於其負載為燈管,因此必須先了解其特性,並由背光模組的機構尺寸,計算出燈管之等效模型。
由所求得的燈管等效模型,利用阻抗的觀念,以MathCAD軟體為輔助,逐步計算出所需的均流電感感值及諧振電容容值,更進一步計算出所需變壓器的匝比、漏感值等規格。最後根據設計的參數實作一可驅動16支燈管的驅動電源,並實際量測其特性,以驗證理論推導的正確性。
The subject of this thesis is to design a CCFL full-bridge inverter with inductor current balance circuit. Since the load of a CCFL inverter is composed of lamps, the characteristics of these lamps must be studied first in detail. Then the equivalent circuit model of the CCFL is developed based on the mechanical dimensions of the backlight module.
From the developed CCFL model and the concept of impedance, the MathCAD software tool can be adopted to calculate the required inductance of the current balance circuit and the resonant capacitance. The parameters of the transformer, such as turns ratio and secondary leakage inductance are obtained. Finally, a CCFL inverter prototype driving up to 16 lamps is implemented and tested. Satisfactory results are recorded to verify the theoretical analysis.
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