A versatile current-mode biquad using operational amplifiers

Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems Pub Date : 1994-12-05 DOI:10.1109/APCCAS.1994.514618

Y. Shiwen, S. Tsuiki, M. Ishida, Y. Fukui

引用次数: 0

Abstract

A versatile current-mode biquad filter using three operational amplifiers and 9 passive elements is proposed. By the suitable choice of the output branch, lowpass, bandpass, highpass, bandstop and allpass transfer functions are realized simultaneously without changing the circuit configuration and elements. Two circuits, one is for low frequency application and the other for high frequency, are proposed. The center frequency, quality factor and gain constants of the circuit can be tuned independently. Simulated results will show that the circuits work successfully.

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使用运算放大器的通用电流模式双路电路

提出了一种由3个运算放大器和9个无源元件组成的通用电流模式双源滤波器。通过选择合适的输出支路，可以在不改变电路结构和元件的情况下同时实现低通、带通、高通、带阻和全通传递函数。提出了两种电路，一种用于低频，另一种用于高频。该电路的中心频率、品质因数和增益常数均可独立调谐。仿真结果表明，该电路工作正常。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of APCCAS'94 - 1994 Asia Pacific Conference on Circuits and Systems

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