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#nofulltext#In this paper, new circuits for realizing current-mode and voltage-mode proportional plus integral plus derivative (PID) controllers, proportional plus integral (PI) and proportional plus derivative (PD) controllers employing only plus-type second-generation current conveyors (CCII+s) as active elements are presented. All of the proposed PID, PI and PD controllers have unmatched passive elements, all of which are grounded. The proposed controllers employ reduced number of active and passive components with respect to traditional op-amp based PID, PI and PD controllers. In particular, the proposed current-mode and voltage-mode PD and PI controllers employ minimum number of active and passive components. A closed-loop control system employing the proposed current-mode PID controller is designed and simulated using SPICE

Low-Component-Count Insensitive Current-Mode and Voltage-Mode PID, PI and PD Controllers