摘要
根据理想模型分析,表明负反馈放大器的4种负反馈对放大嚣的4种源增益的影响是不同的。通过对具有源内阻的信号源激励下的并联负反馈放大器的等效电路和串联负反馈放大器的等效电路分析,表明同一种负反馈对4种源增益具有同样的影响,这是负反馈放大器增益的一个新结论。
The analysis of ideal model indicates that 4 negative feedbacks of the negative feedback amplifiers have different effects on 4 gains of the amplifiers. Through analysis on the equivalent circuits both of parallel and negative feedback amplifiers and serial feedback amplifiers with source internal resistance, it indicates that the same negative feedback has different effects on 4 source gains, which is the new conclusion of the negative amplifier gain.
出处
《长江大学学报（自然科学版）》
CAS
2004年第4期106-107,117,i005,共4页
Journal of Yangtze University(Natural Science Edition)
关键词
负反馈
放大器
源增益
并联电路
串联电路
negative feedback
amplifier
source gain
parallel circuit
serial circuit
