Analogue Realization of a Fully Tunable Fractional-Order PID Controller for a DC Motor

Abstract

This paper explores a new integrated-circuit architecture of an analog, active, tunable and selectively fractional or integer-order PID controller using operational amplifiers. Controller’s major parameters are tuned via appropriate DC currents to the desired values. The proposed architecture is validated in a case study of a DC motor control and it can be used as a building block in industrial and commercial control systems. Circuit and physical design (layout) have been done in TSMC 90nm CMOS process. Extensive circuit and post-layout simulation are carried out using the Cadence IC design.