采用SC与运放幅度比较器的负阻模拟器

A NEGATIVE RESISTANCE IMITATED CIRCUIT WITH A SC CIRCUIT AND A SCOPE COMPARER OF OPERATIONAL AMPLITER

本文提出了一种新的负阻模拟电路的设想。该电路采用SC电路及运放幅度比较器组合结构,通过幅度比较器与SC进行电流换向,从而在电路输入端获得与输入电压反向的输入电流,在输入端获得一个等效负阻。由于电路采用SC电路及运算放大器,因而极易于集成化,这是它的最大优点。

In this paper, we imitate a negative resistance, using a SC circuit and a scope comparer of operational ampliter. Changing the direction of the current with the scope comparer and the SC circuit, thus the input part of the circuit obtains an equivalent negative resistance. This circuit is easy to integrate.