集成运放有源电阻波形发生器

Operational Amplifier Active Resistor Waveform Generators

本文根据运放单极点模型,利用开环运放所具有的积分特性,提出了有源电阻积分式正弦波发生器,以及有源电阻三角波发生器,并对有源电阻方波发生器进行了介绍。这些电路都分别由两个运算放大器和几个电阻所组成,不需外接电容,其输出波形良好。文中给出实验结果。

In this paper, active resistor integrating sinusoidal wave, active resistor triangular wave and square wave generators are proposed by using the integrating characteristics of the open-loop operational amplifier with the singlc-pole model. Those waveform generators whose output waveforms are quite good are composed of a couple of operational amplifiers and several resistors without any capacitors. The experimental results are presented.