(18.232.50.137) 您好!臺灣時間:2021/05/07 02:35
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:林育德
研究生(外文):Yu-Te Lin
論文名稱:AC/DC整合式RGBLED背光模組驅動電源
論文名稱(外文):AC/DC integrated RGB LED backlight driver
指導教授:林伯仁
學位類別:碩士
校院名稱:國立雲林科技大學
系所名稱:電機工程系碩士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:85
中文關鍵詞:RGB LEDPWM調光返馳式
外文關鍵詞:RGB LEDFlybackPWM Brightness Modulated
相關次數:
  • 被引用被引用:6
  • 點閱點閱:404
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
本論文提出驅動RGB LED的整合式電源用於LCD背光源取代以往的CCFL。以反馳式三組繞組改善傳統的三組直流對直流轉換器,提升轉換效率以及降低成本。串並聯的LED由多組定電流電路控制,調整PWM訊號可達亮度調整的效果,使色彩明暗變化更細緻。依據本論文所提出的操作原理、分析及設計,製作40W,Vin=85~265VAC,操作頻率在65KHZ的實體電路來驗證所提出轉換器的性能。
A RGB LED backlight driven by a integrated converter is proposed in the thesis instead of CCFL as a Lcd backlight. A flyback converter with three windings takes place of conventional three DC/DC converter so as to improve the efficiency and to decrease the cost. Series-parallel LEDs is controlled by several constant-current circuits and the brightness modulation can be much find and smooth by adjusting PWM signal. The operation principle, analysis and design of the converter more detail. Experimental results show a prototype for Vin=85~265VAC, 40W, operating at switching frequency of 65KHz to verify the performance of the proposed converter.
中文摘要 ---------------------------------------------------------------------------------------- i
英文摘要 --------------------------------------------------------------------------------------- ii
誌謝 ---------------------------------------------------------------------------------------------- iii
目錄 ---------------------------------------------------------------------------------------------- iv
表目錄 ------------------------------------------------------------------------------------------ vii
圖目錄 ------------------------------------------------------------------------------------------viii
符號說明 ----------------------------------------------------------------------------------------x
第一章 導論 --------------------------------------------------------------------------------------1
1-1簡介 ------------------------------------------------------------------------------------1
1-2研究大綱 ------------------------------------------------------------------------------1
1-3論文大綱 ------------------------------------------------------------------------------1
第二章 液晶顯示器介紹 -----------------------------------------------------------------------2
2-1液晶顯示器簡介 --------------------------------------------------------------------2
2-2液晶顯示器種類 --------------------------------------------------------------------2
2-3液晶顯示器工作原理 --------------------------------------------------------------5
2-4彩色顯示技術 -----------------------------------------------------------------------6
2-5背光模組 -----------------------------------------------------------------------------8
2-6冷陰極管 --------------------------------------------------------------------------- 10
第三章 半導體光源 ---------------------------------------------------------------------------11
3-1 LED發光原理 --------------------------------------------------------------------11
3-2 LED製程技術 --------------------------------------------------------------------11
3-3 LED照明術語 --------------------------------------------------------------------13
3-4 LED色彩原理 --------------------------------------------------------------------15
3-5 LED特性 --------------------------------------------------------------------------17
3-6 RGB LED背光模組 -------------------------------------------------------------22
3-7 RGB LED色彩管理系統 -------------------------------------------------------23
第四章 AC/DC整合式RGB LED背光模組驅動電源 -----------------------------------24
4-1切換式電源轉換器 --------------------------------------------------------------24
4-2轉換器工作模式 -----------------------------------------------------------------25


4-3返馳式轉換器 --------------------------------------------------------------------26
4-4高頻變壓器 -----------------------------------------------------------------------33
4-5轉換器設計 -----------------------------------------------------------------------35
4-6 RGB LED液晶螢幕電源轉換器規劃 ----------------------------------------50
4-7 AC/DC轉換器設計參數 --------------------------------------------------------53
4-8 LED定電流電路 -----------------------------------------------------------------57
4-9電路實驗結果 --------------------------------------------------------------------60
第五章 結論與未來趨勢 --------------------------------------------------------------------70
參考文獻 ---------------------------------------------------------------------------------------71
[1] 林伯仁編著,交換式電源供應器設計與最佳化,初版,全華科技圖書,民96。
[2] H. -J. Chiu and S. -J. Cheng, “LED Backlight Driving System for Large-Scale LCD Panels,” IEEE Transactions on Industrial Electronics, Vol. 54, No, 5, pp. 2751-2760, August 2007.
[3] C. -C. Chen; C. -Y. Wu; Y. -M. Chen; T. -F. Wu, “Sequential Color LED Backlight Driving System for LCD Panels,” IEEE Transactions on Power Electronics, Vol. 22, No, 3, pp. 919-925, May 2007.
[4] S. Muthu and J. Gaines, “Red, Green and Blue LED-Based white Light Source: Implementation Challenges and Control Design,” IEEE IAS, pp. 515-522, 2003.
[5] S. Muthu, F. J. P. Schuurmans and M. D. Pashley, “Red, Green, and Blue LED Based white Light Generation: Issues and Control,” IEEE IAS, pp. 327-333, 2002.
[6] 林伯仁、羅有綱、陳俊吉編著,交換式電源供應器剖析,初版,全華科技圖書,民97。
[7] Color Management Controller with Integrated RGB Photosensor, Data Sheet ADJD-J823, AvaGo Technologies, June 2007.
[8] All-Ways-OnTM High-Power LED Driver, Macroblock, Inc., June 2006.
[9] Power Supply Design Techniques for EMI and Safety, Application Note-15, Power Intergrations, Inc., April 2005.
[10] Flyback Design Methodology, Application Note-32, Power Intergrations, Inc., July 2004.
[11] P. C. P. Chao, L. D. Liao and C. W. Chiu, “Design of a Novel LED Lens Cap and Optimization of LED Placement in a Large Area Direct Backlight for LCD-TVs, ” SPIE Proceedins, pp. 1-9, 2006.
[12] A. Gago, N. Guil and A. C. Gago, “New Full-Color LED based Screen,” IEEE MELECON, pp. 393-396, 2006.
[13] T. Treurniet and V. Lammens, “Thermal Management in Color Variable Multi-Chip LED Modules,” IEEE SEMI-THERM, pp. 173-177, 2006.
[14] 黃建嵐,零電壓切換主動箝位Cuk電源轉換器,國立雲林科技大學,碩士論文,民96。
[15] LEDinside Website, http://www.ledinside.com.tw/
[16] 孫慶成,省電/環保議題發酵、LED背光源設計備受矚目,新電子科技雜誌,民96年6月。
[17] 陳健致,新型零電壓之切換式電源供應器,國立雲林科技大學,碩士論文,民96。
[18] Y. Uchida, T. Setomoto, T. Taguchi, Y. Nakagawa and K. Miyazaki, “Characteristics of High-Efficiency InGaN-based White LED Lighting, ” SPIE Proceedings, pp. 120-126, 2000.
[19] 國立高雄第一科技大學,電力轉換器教材,電子工程系教學教材。
[20] Alan Fisher,LED驅動IC效能大幅躍進、中小尺寸背光源全面升級,新電子科技雜誌,民97年6月。
[21] 盧慶儒,多色LED背光模組的補色與調光課題,DIGITIMES科技網。
[22] 大田登著,陳鴻興/陳君彥譯,基礎色彩再現工程,全華科技圖書,民92年。
[23]M. J. Zwanenburg, T. Dunn, A. Stich, W. Schwedler and L. Plötz, “High-efficiency LEDs for LCD Backlights,” Society for Information Display, pp. 1222-1225, 2004.
[24] W. R. Chen and C. J. Huang, “ZnSe-Based Mixed-Color LEDs,” IEEE Photonics Technology Letters, Vol. 16, No, 5, pp. 1259-1261, May 2004.
[25] 林伯仁、林育德、黃鈺翔,AC/DC 整合式RGB LED 背光模組驅動電源,第七屆台灣電力電子研討會論文,2008。
[26] R. Hicks and W. Halstead, “Flat Fluorescent Lamp Technology for LCD’s,” IEEE DASC, pp. 630-635, 1994.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
系統版面圖檔 系統版面圖檔