Short note The reverse gain of linear feedback amplifiers: a word of caution

Luis Moura

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Short note The reverse gain of linear feedback amplifiers: a word of caution

机译：简短说明线性反馈放大器的反向增益：注意

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摘要

In this note we discuss the reverse gain of feedback amplifiers; a parameter often neglected in the feedback analysis presented in most textbooks on electronics. The discussion presented here shows how this reverse gain can have a significant impact on the feedback circuit input and output impedances, even when such a gain is negligible and the circuit is considered as 'unilateral'.

机译：在本文中，我们讨论了反馈放大器的反向增益。在大多数电子学教科书中提供的反馈分析中经常忽略的参数。此处讨论的内容表明，即使反向增益可忽略不计，并且该电路被视为“单侧”，该反向增益又如何对反馈电路的输入和输出阻抗产生重大影响。

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来源
《International Journal of Electrical Engineering Education》 |2011年第2期|p.224-228|共5页
作者
Luis Moura;
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作者单位

DEEI, FCT, University of Algarve, Faro, Portugal;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
amplifiers; negative feedback; reverse gain;

机译：放大器负面反馈;反向增益;

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1. Gain at an Arbitrary Cut in a Linear Bilateral Network, and Its Relation to Loop Gain in Feedback Amplifiers [J] . Cherry Edward M. Circuits and Systems I: Regular Papers, IEEE Transactions on . 2015,第8期

机译：线性双边网络中任意割的增益及其与反馈放大器中环路增益的关系
2. Design and analysis of a feedback time difference amplifier with linear and programmable gain [J] . Wenlan Wu, R. Jacob Baker, Phaneendra Bikkina, Analog Integrated Circuits and Signal Processing . 2018,第3期

机译：具有线性和可编程增益的反馈时间差放大器的设计与分析
3. PVT-independent dB-linear reconfigured local-feedback digital variable gain amplifier [J] . Lee Tzung-Je, Hsiao Wei-Chih Microelectronics journal . 2016,第Apra期

机译：独立于PVT的dB线性重新配置的本地反馈数字可变增益放大器
4. A linear high gain time difference amplifier using feedback gain control [C] . Wenlan Wu, R. Jacob Baker, Phaneendra Bikkina, IEEE Dallas Circuits and Systems Conference . 2016

机译：使用反馈增益控制的线性高增益时差放大器
5. Gain-enhancement differential amplifier using positive feedback. [D] . Tran, Phuoc Thong. 2012

机译：使用正反馈的增益增强差分放大器。
6. Frequency-Offset Cartesian Feedback for MRI Power Amplifier Linearization [O] . Marta Gaia Zanchi, Pascal Stang, Adam Kerr, -1

机译：对于mRI功率放大器线性化频偏笛卡尔反馈
7. A novel low-power low-voltage class D amplifier with feedback for improving THD, power efficiency and gain linearity [O] . ChangJ. S., GweeB. H., LonY. S., 2001

机译：具有反馈功能的新型低功耗低压D类放大器，可改善THD，功率效率和增益线性度

Short note The reverse gain of linear feedback amplifiers: a word of caution

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