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研究生:趙祥雲
研究生(外文):Hsiang-Yun Chao
論文名稱:液晶顯示器用之切換式直流對直流升壓控制晶片設計
論文名稱(外文):Chip Design of the Switched-mode Boost DC-DC Control for TFT-LCD
指導教授:宋國明宋國明引用關係
口試委員:郭建宏陳建中黃育賢
口試日期:2007-01-22
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:通訊與資訊產業研發碩士專班
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:2008
畢業學年度:96
語文別:中文
論文頁數:70
中文關鍵詞:直流對直流轉換器脈衝寬度調變脈衝頻率調變升壓
外文關鍵詞:DC to DC ConverterBoostPulse Width ModulationPulse Frequency ModulationPower Management
相關次數:
  • 被引用被引用:1
  • 點閱點閱:199
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  • 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ㄧ種不需鋸齒波產生器和誤差放大器的架構,其係利用比較器和輸出固定責任比的振盪器來替代鋸齒波訊號,藉此控制開關的動作,完成升壓式直流電壓控制晶片,以提供15伏特直流偏壓給小尺寸液晶顯示器(Liquid Crystal Display, LCD)。該控制晶片係利用TSMC 0.35um 2P4M 混合信號製程來設計,所完成的晶片面積大小約為0.42*0.52 mm2。當輸入電壓範圍為3.0-3.6V與工作頻率在1 MHz條件下,其輸出電壓可維持在15V 10%以內,且其輸出電流約為50mA,效率也可維持在85%以上。
This paper proposes a switched-mode boost DC-DC converter, which doesn’t need not only a saw-tooth wave generator but also an error amplifier. By using a comparator and a fixed duty-cycle oscillator, the proposed controller will offer a high DC voltage of 15V to drive the LED backlight driver for Liquid Crystal Display (LCD). The chip area is about 0.42*0.52 mm2 , which is implemented with TSMC 0.35 um 2P4M mixed-mode process. Under the conditions of the input supply voltage of 3.0-3.6 V and the signal frequency of 1 MHz, the chip can provide a regulated 15V 10% output voltage and a power efficiency of greater than 85%.
目 錄

摘 要 i
ABSTRACT ii
誌 謝 iii
目 錄 iv
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 研究動機 1
1.2 電源管理系統的重要性 2
1.3 論文架構 3
第二章 各種直流電壓轉換器之原理架構介紹 4
2.1直流電壓轉換器簡介 4
2.1.1 線性直流電壓轉換器(Linear DC-DC Converter) 4
2.1.2 交換電容式直流電壓轉換器 5
2.1.3 切換式直流電壓轉換器(Switched Mode DC-DC Converter) 5
2.2 切換式直流升壓轉換器(SWITCHED MODE BOOST DC-DC CONVERTER)分析 6
2.3 電壓與電流回授方式 17
2.3.1 電壓回授方式 17
2.3.2 電流回授方式 19
2.4 電流感測方式 23
2.4.1 串聯感測電阻 23
2.4.2 汲源極電阻感測 23
2.4.3 電感濾波感測 24
2.4.4 無感測器感測 25
2.4.5 感測電晶體 26
2.4.6 輸入端電流感測 26
第三章 直流升壓控制器電路設計規格 28
3.1 系統設計流程、系統規格與架構 28
3.1.1 系統設計流程 28
3.2 切換式直流升壓控制器電路設計構想 29
3.3切換式直流升壓控制器動作原理 30
3.4 比較器電路設計 31
3.4.1 輸入偏移電壓 32
3.4.2 傳輸延遲時間 32
3.4.3 比較器磁滯現象 33
3.5 能隙參考電壓電路(BANDGAP REFERENCE CIRCUIT) 38
3.6 環型振盪器 50
3.7 輸出緩衝級(OUTPUT BUFFER) 53
3.8 電路佈局考量 54
第四章 電路模擬結果與規格表 56
4.1預計規格表 56
4.2整體電路特性模擬 56
4.3晶片佈局圖 62
4.4測試考量 62
4.4.1 功率電晶體 62
4.4.2 蕭特基二極體 63
4.4.3 測試電路 63
第五章 結論 65
5.1 結論 65
5.2 未來工作 65
參考文獻 68
作者簡介 70
參考文獻

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