用Nullor构建理想电压源模型求解符号传递函数的方法  

A method for symbolic circuit analysis using Nullor constructed voltage source model

作　　者：滕建辅[1] 董健[1] 史斌[1] 马杰[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《电路与系统学报》2007年第4期124-127,131,共5页Journal of Circuits and Systems

摘　　要：电路网络的符号传递函数分析技术在电路分析与设计中起着重要的作用。本文利用Nullor元件,构建了理想电压源的模型,扩展了节点分析法的应用范围,并且基于Mathematica强大的符号处理能力,设计出一种求解网络符号传递函数的节点分析法。该方法可以求解节点间含有理想电压源的线性时不变(LTI)系统中各种电路参数的符号传递函数。电路分析与设计实例表明,利用本文给出的方法所开发的符号传递函数求解程序,是电路分析和电路设计的有利助手。Symbolic circuit analysis plays an important role in circuit analysis and design. In this paper, a method using independent voltage source model constructed by nullor is proposed. Based on Mathematica＇s powerful ability of symbolic manipulation, a CAD tool for symbolic circuit analysis is implemented by Nullor model for the purpose of expanding the application range of nodal analysis. Symbolic transfer function of LTI systems can be derived by that tool. The circuit symbolic analysis results show that the proposed method is very helpful for circuit analysis and circuit design.

关 键 词：符号电路分析 NULLOR MATHEMATICA CAD 

分 类 号：TN713[电子电信—电路与系统]