Low-Power Buffer Amplifier for TFT-LCD Driver

LIN Zhi-cheng; SHAO Qing-yi; CHEN A-qing

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Low-Power Buffer Amplifier for TFT-LCD Driver

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- Low-Power Buffer Amplifier for TFT-LCD Driver
- Chinese Journal of Liquid Crystals and Displays Vol. 24, Issue 3, Pages: 409-412(2009)
- 作者机构：
  
  1. 华南师范大学物理与电信工程学院
  2. 广东省高等学校量子信息技术重点实验室, 广东广州 510006,E-mail:underson2003@yahoo.com.cn
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN27;TN702.2
- Received：23 October 2008，
  
  Revised：02 January 1900，
  
  Published Online：30 June 2009，
  
  Published：30 June 2009
- 稿件说明：
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林志成;邵庆益;陈阿青. 用于TFT-LCD驱动电路的输出缓冲放大器[J]. 液晶与显示, 2009,24(3): 409-412

LIN Zhi-cheng;SHAO Qing-yi;CHEN A-qing. Low-Power Buffer Amplifier for TFT-LCD Driver[J]. 液晶与显示, 2009,24(3): 409-412
林志成;邵庆益;陈阿青. 用于TFT-LCD驱动电路的输出缓冲放大器[J]. 液晶与显示, 2009,24(3): 409-412 DOI：

LIN Zhi-cheng;SHAO Qing-yi;CHEN A-qing. Low-Power Buffer Amplifier for TFT-LCD Driver[J]. 液晶与显示, 2009,24(3): 409-412 DOI：

摘要

设计了一种用于TFT-LCD驱动的低功耗CMOS缓冲放大器。该放大器在AB类缓冲放大器的基础上

结合辅助的B类放大器

能够驱动大容性负载

以较低的功耗达到了LCD驱动的速度要求。在0.15 m CMOS工艺模型、20 nF电容负载和5.5 V电源电压下

该缓冲放大器的静态功耗为40 W

1%精度的建立时间为7 s。

Abstract

A low power buffer amplifier for TFT-LCD driver is presented.Based on Class AB output stage

aided with Class B output stage

this amplifier can driver large capacity loads with low power to meet setting time requirement.Based on 0.15 m CMOS process

the quiescent power of this buffer amplifier is 40 W

and the setting time of 1% precision is 7 s at 20 nF capacity loads.

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Keywords

references

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. 杨虹,凌志华,王刚,等.高画质低功耗的TFT-LCD直接驱动方法 [J]. 液晶与显示 ,1999,14(4):296-300.

. Razavi B.Design of Analog CMOS Integrated Circuits [M].New York:McGraw-Hill,2001.

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Related Institution

华南师范大学物理与电信工程学院

广东省高等学校量子信息技术重点实验室, 广东广州 510006,E-mail:underson2003@yahoo.com.cn

Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China

Institute of Microelectronics, Tsinghua University

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