关于结点电压法的教学探讨

Study on Teaching of Node Voltage Method

结点电压法是电路课程中最重要的、最常用的、最有效的电路分析方法之一。本文针对教学中出现的常见问题进行了详细分析,利用电源等效变换方法对结点电压法的教学给予探讨,并对结点电压方程标准形式的解释进行改进。把方程右侧的i s k k的解释“流入结点k的所有电流源电流的代数和”改进为“流入结点k的所有无伴电源电流的代数和”,提高了列写方程的准确度,从而实现对教学效果的提高。

Node voltage method is one of most important,most commonly used and most effective circuit analysis methods.This paper analyzes the common problems in circuit course teaching,discusses the teaching of node voltage by means of the equivalent transformation of power source,and improves the explanation of the standard form of the node voltage equation.On the right side of the equation,"algebraic sum of all current sources flowing into node K"is improved to"algebraic sum of all unaccompanied power sources flowing into node K",which greatly improves the accuracy of equation and the teaching effect.