A novel lead and lag compensator circuit employing a single current feedback operational amplifier

Buzcu Y., Topaloglu S., Ayten U. E., Sağbaş M.

MICROELECTRONICS JOURNAL, vol.105, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 105
  • Publication Date: 2020
  • Doi Number: 10.1016/j.mejo.2020.104913
  • Journal Name: MICROELECTRONICS JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC
  • Yıldız Technical University Affiliated: Yes

Abstract

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.