| 任意阶OTA-C多功能滤波器的设计。 |
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| 引用本文： | 龙英,李仲阳. 任意阶OTA-C多功能滤波器的设计。[J]. 固体电子学研究与进展, 2006, 26(3): 415-419 |
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| 作者姓名： | 龙英 李仲阳 |
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| 作者单位： | 1. 长沙学院电子与通信工程系,长沙,410003;湖南师范大学工学院电子与信息工程系,长沙,410082
2. 湖南师范大学工学院电子与信息工程系,长沙,410082 |
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| 摘 要： | 提出了一种新的任意阶运算跨导放大器——电容(OTA-C)多功能滤波器的设计方法。通过将n阶传递函数分解为n+1个一阶传递函数,导出了任意阶传递函数OTA-C实现电路。适当选择各输入端电压,可实现低通、高通、带通、带阻、全通等滤波功能。文中给出了6阶滤波器设计实例,PSPICE仿真结果与理论分析相吻合,验证了设计方法的可行性。
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| 关 键 词： | 有源滤波器 运算跨导放大器 电路理论与设计 |
| 文章编号： | 1000-3819(2006)03-415-05 |
| 收稿时间： | 2004-11-04 |
| 修稿时间： | 2005-03-07 |
Design of Arbitrary Order OTA-C Multifunction Filters |
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| LONG Ying,LI Zhongyang. Design of Arbitrary Order OTA-C Multifunction Filters[J]. Research & Progress of Solid State Electronics, 2006, 26(3): 415-419 |
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| Authors: | LONG Ying LI Zhongyang |
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| Affiliation: | 1 Department of Electronics and Communication Engineering, Chang Sha University, Chang Sha, 410003, CHN;2 Department of Electrical and Information Engineering, College of Engineering, Hunan Normal University, Chang Sha, 410082, CHN |
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| Abstract: | This paper presents a new general design method for arbitrary order operational transconductance amplifiers and capacitors (OTA-C) multifunction filters. A OTA-C configuration that can be used to realize arbitrary order transfer function is obtained by the decomposition of a nth-order transfer function into n+1 first-order transfer functions. The lowpass, highpass, bandpass, bandstop and allpass filters are realized by selecting input voltage reasonably. A 6~ th -order filter is designed. PSPICE simulation results are obtained to verify the theoretical analysis and to demonstrate its effectiveness. |
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| Keywords: | active filter operational transconductance amplifiers(OTA) circuit theory and design |
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