Transistor-feedback-amplifier design
作者:
H.G.Brierley,
S.S.Hakim,
期刊:
Proceedings of the Institution of Electrical Engineers
(IET Available online 1965)
卷期:
Volume 112,
issue 10
页码: 1825-1834
年代: 1965
DOI:10.1049/piee.1965.0300
出版商: IEE
数据来源: IET
摘要:
Formulas are given to help in the estimation of the positions of poles and zeros of the open-loop gain of an uncorrected transistor amplifier. Design curves are provided to enable the determination of a modified pole-zero configuration which will yield a desired gain and phase margin against oscillation. A synthesis procedure is described which yields a network making the necessary modifications to the pole-zero configuration. Formulas for element values enable the process to be carried out with simple arithmetic calculations for a type of amplifier commonly encountered.This process does not involve the usual practice of measuring the open-loop frequency response of the uncorrected amplifier and then correcting this to approximate to Bode's ideal-loop-gain characteristic. This correction usually involves either fitting a required loss curve with a rational function or an equally tedious ‘cut-and-try’ experimental process.
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