摘要
晶体管放大器常采用图解法和等效电路法进行分析．本文以ｎ－ｐ－ｎ型晶体管为例，介绍了零器模型（包括静态模型和动态模型）在晶体管放大器分析方面的应用，它与传统方法不同，简便易行。
Traditionally,the analysis of transistor amplifiers has been done by using graphics and equivalent circuits.This paper,however,introduces a creative method by using nullor model (both static and dynamic)to analyze N-P-N transistors.It works easily and feasibly.
