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

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. 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.

[1]  Shahram Minaei,et al.  A voltage-mode PID controller using a single CFOA and only grounded capacitors , 2018, Microelectron. J..

[2]  Erkan Yuce,et al.  CCII-based PID controllers employing grounded passive components , 2006 .

[3]  S. Minaei,et al.  Low-Component-Count Insensitive Current-Mode and Voltage-Mode PID, PI and PD Controllers , 2006 .

[4]  Erkan Yuce,et al.  DDCC+ based voltage-mode PID controller employing only grounded passive components , 2016 .

[5]  A. Leuciuc.  Using nullors for realisation of inverse transfer functions and characteristics , 1997 .

[6]  Norman S. Nise,et al.  Control Systems Engineering , 1991 .

[7]  Hung-Yu Wang,et al.  Using nullors for realisation of current-mode FTFN-based inverse filters , 1999 .

[8]  Lu Xia,et al.  Lead and lag compensators with complex poles and zeros design formulas for modeling and loop shaping , 2007, IEEE Control Systems.

[9]  Raj Senani,et al.  New analogue inverse filters realised with current feedback op-amps , 2011 .

[10]  Ali Ümit Keskin,et al.  Design of a PID Controller Circuit Employing CDBAs , 2006 .

[11]  Muhammad Taher Abuelma'atti.  Identification of Cascadable Current-Mode Filters and Inverse-Filters Using Single FTFN , 2000 .

[12]  Lorenzo Ntogramatzidis,et al.  Analytical and graphical design of lead–lag compensators , 2011, Int. J. Control.

[13]  Ali Toker,et al.  Ota-C Based Proportional-Integral-Derivative (PID) Controller and Calculating Optimum Parameter Tolerances , 2001 .

[14]  W. Surakampontorn,et al.  Realisation of current-mode FTFN-based inverse filter , 1999 .

[15]  Ashutosh Kumar Singh,et al.  Inverse active filters employing CFOAs , 2009 .

[16]  Shahram Minaei,et al.  New CCII-based versatile structure for realizing PID controller and instrumentation amplifier , 2010, Microelectron. J..

[17]  Gene F. Franklin,et al.  Feedback Control of Dynamic Systems , 1986 .

[18]  William Messner.  Formulas for asymmetric lead and lag compensators , 2009, 2009 American Control Conference.

[19]  Muhammet Köksal,et al.  Design of dominantly proportional PID controller using a single commercially available active component , 2013, 2013 36th International Conference on Telecommunications and Signal Processing (TSP).