| 一种产生正负倍压的电荷泵的优化设计 |
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| 引用本文： | 尚晓丹,王继安,张佳,王娜,李威,龚敏.一种产生正负倍压的电荷泵的优化设计[J].微电子学,2006,36(4):522-525. |
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| 作者姓名： | 尚晓丹 王继安 张佳 王娜 李威 龚敏 |
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| 作者单位： | 1. 四川大学,微电子学系,微电子技术四川省重点实验室,四川,成都,610064
2. 电子科技大学,微电子与固体电子学院,四川,成都,610054 |
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| 摘 要： | 通过对传统的电荷泵进行结构改进和参数优化,得到了一种高效率、低功耗的电荷泵,并阐述了电荷泵的工作原理,分析了影响功耗和效率的因素。该电荷泵通过检测输出电压来控制泵压,大大降低了功耗;同时,再对开关管进行参数优化,进一步减小了功耗。最后,将该优化后的电荷泵应用到RS-232C串口通信电路中。通过仿真,对其性能进行了验证,并与传统电荷泵进行了比较。
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| 关 键 词： | 电荷泵 RS-232C 串口通信电路 |
| 文章编号： | 1004-3365（2006）04-0522-04 |
| 收稿时间： | 2005-10-31 |
| 修稿时间： | 2005-10-312005-12-23 |
Optimal Design of a Charge Pump with Doubled Positive and Negative Output Voltages |
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| SHANG Xiao-dan,WANG Ji-an,ZHANG Jia,WANG Na,LI Wei,GONG Min.Optimal Design of a Charge Pump with Doubled Positive and Negative Output Voltages[J].Microelectronics,2006,36(4):522-525. |
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| Authors: | SHANG Xiao-dan WANG Ji-an ZHANG Jia WANG Na LI Wei GONG Min |
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| Affiliation: | 1. Key Lab of Microelectronics of Sichuan Province, Dept. of Microelectronics , Sichuan University, Chengdu, Sichuan 610064, P. R. China 2. College o f Microelec. and Sol. Sta. Electr. , Univ. o f Elec. Sci. and Technol. of China, Chengdu, Sichuan 610054, P. R. China |
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| Abstract: | A high-efficiency,low-power charge pump was obtained by modifying the structure of a conventional charge pump and optimizing its parameters.The operational principle of the charge pump was described,and factors affecting power consumption and efficiency were analyzed.The pumping mode was controlled by detecting output voltages to cut down power consumption,which was further reduced by optimizing the size of switching transistors.The optimized charge pump was used in an RS-232C serial communication circuit.Its performance was verified through simulation and some characteristics were compared with the conventional type. |
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| Keywords: | Charge pump RS-232C Serial communication circuit |
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