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一、概述有源RC微分器和积分器在信号的形成、过程控制设计和试验仪器等电路中获得广泛的应用。尽管有源RC网络可以用很多方法组成,但是这些方法均是以普通运放作为有源器件,而运放的有限增益带宽乘积将影响电路的精度和频响从而限制电路的工作范围。本文介绍一种以第二代电流变换器(CCI)为基础组成的新型微分器和积分器,由于该电路是以电流型变换器作为有源器件,所以具有频带宽、精度高和漏电容影响小等优
I. Overview Active RC differentiators and integrators in the signal formation, process control design and test equipment and other circuits have been widely used. Although the active RC network can be formed by many methods, all of these methods use the ordinary op amp as the active device. However, the limited gain bandwidth product of the op amp will affect the accuracy and frequency response of the circuit to limit the operating range of the circuit. This paper introduces a new type of differentiator and integrator based on the second generation of current transformer (CCI). Because this circuit is based on current transformer, it has the advantages of wide frequency band, high precision and leakage capacitance Small and other excellent