REFINED CLASSIFICATION OF SINGLE AMPLIFIER FILTERS

被引：14

作者：

SEDRA, AS

BROWN, L

机构：

[1] Department of Electrical Engineering, University of Toronto, Toronto, Ontario

来源：

INTERNATIONAL JOURNAL OF CIRCUIT THEORY AND APPLICATIONS | 1979年 / 7卷 / 01期

关键词：

D O I：

10.1002/cta.4490070114

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

It is shown that Single Amplifier Biquads (SAB's) may be grouped into two major categories, the Enhanced Negative Feedback (ENF) and the Enhanced Positive Feedback (EPF). These two major classes of circuit are related by the complementary transformation and hence exhibit identical sensitivity performance. In the extreme, the ENF class degenerates to the familiar Negative Feedback (NF) class while the EPF class reduces to the Positive Feedback (PF) case where the op amp is connected in a unity‐gain configuration. Depending on the order of the RC feedback network, each class includes two subclasses with different sensitivity performance. The paper examines in detail the ‘enhanced feedback’ mechanism, and investigates the optimum design of the Deliyannis—Friend circuit and its complement the Sallen and Key positive feedback configuration. Copyright © 1979 John Wiley & Sons, Ltd.

引用

页码：127 / 137

页数：11

共 18 条

[1]

Sedra A., Generation and classification of single amplifier filters, Int. J. Cir. Theor. Appl., 2, pp. 51-67, (1974)

[2]

Daryanani G., Principles of Active Network Synthesis and Design, (1976)

[3]

Sedra A., Brackett P.O., Filter Theory and Design: Active and Passive, 2, (1978)

[4]

Deliyannis T., High‐Q factor circuit with reduced sensitivity’, Electronics Letters, 4, (1968)

[5]

Friend J.J., A single operational amplifier biquadratic filter section, (1970)

[6]

Friend J.J., Harris C.A., Hilberman D., STAR: An active biquadratic filter section, IEEE Trans. Cir. Syst., 22 CAS, pp. 115-121, (1975)

[7]

Fleischer P.E., Sensitivity minimization in a single amplifier biquad circuit, IEEE Trans. Cir. Syst., 23 CAS, pp. 45-55, (1976)

[8]

Moschytz G.S., Horn P., pp. 332-335, (1977)

[9]

Fliege N., Complementary transformation of feedback systems, IEEE Transactions on Circuit Theory, 20 CT, pp. 137-139, (1973)

[10]

Hilberman D., Input and ground as complements in active filters, IEEE Transactions on Circuit Theory, 20 CT, pp. 540-547, (1973)

← 1 2 →