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A novel lead and lag compensator circuit employing a single current feedback operational amplifier
Microelectronics Journal ( IF 1.9 ) Pub Date : 2020-10-03 , DOI: 10.1016/j.mejo.2020.104913
Yusuf Buzcu , Serkan Topaloglu , Umut Engin Ayten , Mehmet Sagbas

In this study, a novel lead and lag type compensator circuit is proposed using a single active component, namely, the current feedback operational amplifier (CFOA). The proposed circuit has only one CFOA, two grounded resistors and two grounded capacitors. The input impedance of the proposed compensator is designed to be high whereas the output impedance is low. In terms of input and output impedance values, the proposed topology is suitable for a cascade connection with the voltage-mode structure not requiring buffer circuits, both at the input and output of the circuit. Moreover, the proposed circuit offers the advantage of controlling the poles and zeros orthogonally. The non-ideal effects depending on the active component are also presented in the paper.

The commercially available AD844 integrated circuit component was used as the CFOA component in the proposed lead and lag compensator circuit and circuit simulations were performed using PSpice. Moreover, the electrical performance of the circuit was demonstrated by experimental studies. The achieved theoretical, simulation and experimental results are given with a comparison. Finally, a closed-loop control system application was given using the proposed compensator circuit and the operation of the circuit was demonstrated with PSpice simulations.



中文翻译:

采用单电流反馈运算放大器的新型超前和滞后补偿器电路

在这项研究中,提出了一种新颖的超前和滞后型补偿器电路,该电路使用单个有源组件,即电流反馈运算放大器(CFOA)。所提出的电路只有一个CFOA,两个接地电阻和两个接地电容器。提出的补偿器的输入阻抗设计为较高,而输出阻抗则较低。就输入和输出阻抗值而言,所提出的拓扑结构适合于电压模式结构的级联连接,该电压模式结构在电路的输入和输出端均不需要缓冲电路。而且,所提出的电路具有正交控制极点和零点的优点。本文还介绍了取决于活性成分的非理想效应。

在建议的超前和滞后补偿器电路中,将商用AD844集成电路组件用作CFOA组件,并使用PSpice进行了电路仿真。此外,通过实验研究证明了电路的电气性能。比较了给出的理论,仿真和实验结果。最后,使用提出的补偿器电路给出了闭环控制系统的应用,并通过PSpice仿真演示了该电路的操作。

更新日期:2020-10-11
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