A synthesis of low component count for current-mode PID, PI and PD controllers employing single CCTA and Grounded elements

This paper presents a synthesis of current-mode PI, PD and PID controllers employing current conveyor transconductance amplifier (CCTA). The features of these controllers are that: the output parameters can be an electronically controlled by adjusting corresponding bias currents, circuit description of the PID controller is simply formulated, it consists of only one CCTA cooperating with 2 grounded resistors and 2 grounded capacitors, PI and PD controllers are composed of single CCTA, 2 grounded resistors, 2 grounded capacitors and 3 grounded resistors, a grounded capacitor, respectively. This proposed circuit is very suitable to develop into an integrated circuit. The given results of the PSpice simulation agree well with the theoretical anticipation. The maximum power consumption in a closed-loop control system obtained from the PID controller and current-mode low-pass filter are approximately 0.393mW and PI and PD controllers are 0.379mW and 0.367mW, respectively at ±1.5V supply voltages.