摘要
本文通过严格的数学推导,从理论上证明:并联负反馈电路中,反馈效果和噪声性能之间的关系集中体现在信号源内阻和等效到放大器输入端的反馈电阻的比值关系上。
In this paper, the relation between feedback effects and noise cha-racteritic in the circuit of parallel negative feedback was discussed by strictly mathematical tratment, which was mainly effected by the ratio between the resistance in the votage source and the feedback resistance which equivalent to the amplifer inlet side.
关键词
反馈
噪声
等效电中
Feedback Noise Equivalent circuit
