| 用于TFT-LCD驱动芯片的省面积高效率内置电荷泵 |
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| 引用本文： | 郑然,魏廷存,王佳,高德远.用于TFT-LCD驱动芯片的省面积高效率内置电荷泵[J].半导体学报,2009,30(9):095015-5. |
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| 作者姓名： | 郑然 魏廷存 王佳 高德远 |
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| 基金项目： | 国家高技术研究发展计划 |
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| 摘 要： | An area-saving and high power efficiency charge pump is proposed, and methods for optimizing the operation frequency and improving the power efficiency are discussed. Through sharing coupling capacitors the proposed charge pump realizes two DC-DC functions in one circuit, which can generate both positive and negative high voltages. Due to sharing of the coupling capacitors, as compared with a previous charge pump designed by us for a TFT-LCD driver IC, the die area and the amounts of necessary external capacitors are reduced by 40% and 33%, respectively. Furthermore, the charge pump＇s power efficiency is improved by 8% as a result of employing the new topology. The designed circuit has been successfully applied in a one-chip TFT-LCD driver IC implemented in a 0.18 μm low/mid/high mixed-voltage CMOS process.
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| 关 键 词： | LCD驱动器 功率效率 电荷泵 TFT 驱动IC 驱动集成电路 内置 收费 |
| 收稿时间： | 2/27/2009 4:46:14 PM |
| 修稿时间： | 4/13/2009 9:18:49 AM |
An area-saving and high power efficiency charge pump built in a TFT-LCD driver IC |
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| Zheng Ran,Wei Tingcun,Wang Jia and Gao Deyuan.An area-saving and high power efficiency charge pump built in a TFT-LCD driver IC[J].Chinese Journal of Semiconductors,2009,30(9):095015-5. |
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| Authors: | Zheng Ran Wei Tingcun Wang Jia and Gao Deyuan |
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| Affiliation: | College of Computer, Northwestern Polytechnical University, Xi'an 710072, China;College of Computer, Northwestern Polytechnical University, Xi'an 710072, China;College of Computer, Northwestern Polytechnical University, Xi'an 710072, China;College of Computer, Northwestern Polytechnical University, Xi'an 710072, China |
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| Abstract: | charge pump area-saving power efficiency coupling capacitors TFT-LCD driver IC |
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| Keywords: | charge pump area-saving power efficiency coupling capacitors TFT-LCD driver IC |
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