基于运放的二端口电路实现方法及其应用

Realization of Two-port Circuit with OP and Its Application

本文讨论了对于给定短路电导矩阵参数的二端口电路的实现方法,给出了两种基于电阻和电压控制电压源的二端口电路实现方案,对其中的负电阻和受控源均采用含运放的电阻电路来实现。以回转器的实现为例,说明了实现方法的应用并解释了现有回转器电路的设计实现过程,同时还得到了一种新的回转器实现电路。本文的讨论可供讲授电路理论课程的教师参考。

The realization of two-port circuits, whose short circuit conductance matrix is given, is discussed. Two implementation schemes of the two-port circuits based on resistors and voltage controlled voltage sources are presented. The negative resistors and controlled sources are all realized by resistive circuits containing operational amplifiers. Taking the realization of the gyrator as an example, the application of the realization method is illustrated. The design and realization of the current gyrator circuit is explained, and a new realization circuit of the gyrator is also obtained. The discussion is helpful for the teaching of circuit theory course.