模拟电子电路的两端口网络阻抗等效变换  

Equivalent Transformation of Impedance Parameters in the Two-port Network of Analog Circuits

作　　者：刘自程 樊隆源 杨勇 曹娟[1] 蒋栋 LIU Zicheng;FAN Longyuan;YANG Yong;CAO Juan;JIANG Dong(School of Electrical and Electronic Engineerings,Huazhong Unviersity of Science and Technology,Wuhan 430074,China)

机构地区：[1]华中科技大学电气与电子工程学院,武汉430074

出　　处：《电气电子教学学报》2024年第1期129-132,共4页Journal of Electrical and Electronic Education

基　　金：教育部协同育人项目(220900005155643)。

摘　　要：“模拟电子技术”中的很多基本电路都可视为三端子两端口网络。在学习过程中,为有效分析其输入-输出特性,往往需要对其进行输入回路和输出回路的拆分式解耦等效分析,而阻抗参数等效变换成为一大难点。基于电路理论基础知识,对三端子两端口网络的串联式和并联式阻抗参数等效变换进行了详细推导,并将所提的参数等效变换方法应用于三个典型模拟电路的特性分析,有效简化了电路分析过程。Many basic circuits in the Analog Electronics can be regarded as the two-port network with three terminals,and they need to be decoupled into the input and output loops when their circuit characteristics are analyzed.However,the transformation of the impedance parameters from the original to the decoupled circuits is difficult to understand.This paper derives the parameters transformation of the parallel-or series-connected impedance in the two-port network with three terminals,and employs this method to analyze three typical analog circuits in the textbook.The proposed method can simply the analysis of the analog circuits.

关 键 词：模拟电路 两端口网络 参数等效变换 

分 类 号：TN431[电子电信—微电子学与固体电子学]