差动放大器的微变等效电路分析

SMALL—SIGNAL EQUIVALENT CIRCUIT OF DIFFERENTIAL AMPLIFIER ANALYSIS

本文利用h参数微变等效电路法对双极型晶体管差动放大器的整体电路进行了分析,这种分析不同于文献(1～5)中的分析。此种方法的优点是推导严谨,物理概念清楚,对电路有一个整体概念。

In this paper the integral circuit of basic bipolar transistor differential amplifier is analyzed by means of small-signal hybrid parameter equivalent circuit. The analysis is different from those presented in refereces(1～5). This way has some advantages,which is of rigorous inference,clear physical conception and an idea of the whole on circuit.