| 消除运放时间常数影响的有源滤波器的设计及应用 |
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| 引用本文： | 龚正毅,费子明.消除运放时间常数影响的有源滤波器的设计及应用[J].江南大学学报(自然科学版),1992,7(2):20-29. |
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| 作者姓名： | 龚正毅 费子明 |
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| 作者单位： | 江南大学电子工程系，江南大学电子工程系 |
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| 摘 要： | 本文讨论了转移函数对运放时间常数τ_i=1/GB_i 的一阶与二阶偏导数为零的有源滤波器的设计方法。文章给出了由此方法所构成的一种有源带通滤波器。实验表明,这种滤波器在高频和/或高 Q 下运行时的工作性能要比单运放的达利扬尼斯带通电路优越得多。
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| 关 键 词： | 偏导数 有源滤波器 运放时间常数 |
The Design and Application of Active Filters Free from the Influence of Time Constants of the OA's |
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| Gong Zhenyi Fei Zhiming Dep''''t of Electronic Engineering.The Design and Application of Active Filters Free from the Influence of Time Constants of the OA''''s[J].Journal of Southern Yangtze University:Natural Science Edition,1992,7(2):20-29. |
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| Authors: | Gong Zhenyi Fei Zhiming Dep't of Electronic Engineering |
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| Institution: | Gong Zhenyi Fei Zhiming Dep't of Electronic Engineering |
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| Abstract: | This paper presents the method of designing active filters in which the first and second-order partial derivatives of the transfer function with respect to the time constant of the OA's vanish.An active bandpass filter obtained from this method is introduced in this paper.Experiments show that the performance of this new filter under high frequency and/or high Q applications is significantly superior to the single amplifier's Delyiannis bandpass circuit. |
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| Keywords: | partial derivatives time constants of the OA's |
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