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研究生:鄭欽鴻
研究生(外文):Chin-Hung Cheng
論文名稱:能隙參考電壓產生電路
論文名稱(外文):Bandgap Reference Voltage Generator
指導教授:陳秋麟陳秋麟引用關係
指導教授(外文):Chern-Lin Chen
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:電子工程學研究所
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:2004
畢業學年度:92
語文別:中文
論文頁數:83
中文關鍵詞:參考電壓能隙參考電壓
外文關鍵詞:Voltage ReferenceBandgap Reference
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  準確的參考電壓源在現今的積體電路系統中扮演相當重要的角色,它能產生一穩定的參考電壓,不因電源電壓及環境溫度的變化而產生太大的變動,以提供系統作為比較或維持電路正常操作之用。參考電壓源的應用相當廣泛,常見用於類比-數位或數位類比轉換器、運算放大器或線性穩壓器中,提供設定輸入或輸出電壓範圍、差動輸入對之電流源偏壓或作為比較器的參考電壓等等。
  本論文主要目的為設計一可操作在輸入電壓3V-6V而輸出電壓約1.25V的能隙參考電壓產生電路,提供一穩定的參考電壓給低壓降線性穩壓器使用。我們利用前置穩壓電路先將工作電壓降至2V,再供給能隙參考電壓源使用,如此將減小輸出電壓對電源電壓的敏感度。最後將提出一新的電路架構,可得到電源電壓敏感度小於0.3 mV/V且溫度係數約為7 ppm/℃左右的能隙參考電壓源,而其最大必v消耗亦低於100μW。
  Precision voltage reference plays an important role in modern integrated circuits systems. It can produce a stable reference voltage insensitive to the variations of supply voltage and temperature. Voltage references are widely adopted in many integrated circuits, such as A/D or D/A converters, operational amplifiers, and linear regulators. They are used for defining input/output voltage range, biasing current source of differential pairs, and providing a comparison reference for comparators, etc.
  The objective of this thesis is to design a bandgap reference voltage generator with input voltage 3V to 6V and output voltage around 1.25V. This reference voltage is intended for using in low dropout linear regulators (LDO). A pre-regulator circuit feeds the bandgap circuit with a regulated 2V to lower the supply voltage sensitivity. A new bandgap circuit topology is also presented. The final bandgap reference with supply voltage sensitivity less than 0.3 mV/V, and temperature coefficient around 7 ppm/℃, and power consumption lower than 100μW is achieved.
第一章 序論 1
1-1 研究動機 1
1-2 能隙參考電壓產生電路簡介 2
1-3 設計流程 3
1-4 論文內容介紹 5

第二章 能隙參考電壓產生電路設計原理 6
2-1 基本理論 6
2-2 PTAT與PTAT2參考電流源 10
2-3 參考電壓源之輸出級 13
2-4 常見的能隙參考電壓產生電路 15

第三章 能隙參考電壓產生電路之製作 19
3-1 設計考量與電路架構 19
3-2 能隙電流源 21
3-3 能隙電壓源 24
3-4 啟動電路 28
3-5 整體電路的模擬與修正 .33

第四章 電路佈局與實測 65
4-1 初次下線的電路佈局及量測結果 65
4-2 電阻的誤差 68
4-3 電流鏡的誤差 71
4-4 BJT的誤差 74

第五章 電路架構的再改良 75
5-1 第一型改良電路 75
5-2 第二型改良電路 77

第六章 結論與展望 79
6-1 結論 79
6-2 未來展望 79

參考文獻 81
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[15] Song Liu, R. Jacob Baker, “Process and Temperature Performance of a CMOS Beta-Multiplier Voltage Reference”, Circuits and Systems, 1998 Proceedings, 1998 Midwest Symposium, August 1998
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[19] T. Ytterdal, “CMOS Bandgap Voltage Reference Circuit for Supply Voltage Down to 0.6V”, Electronics Letters, vol. 39, no. 20, pp. 1427-1427, October 2003
[20] Arne E. Buck, Charles L. McDonald, Stephen H. Lewis, T. R. Viswanathan, “A CMOS Bandgap Reference Without Resistors”, IEEE Journal of Solid-State Circuits, vol. 37, no. 1, pp. 81-83, January 2002
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