A Synthesis of Current-mode Proportional Integral and derivative (PID) Controllers Using CCTAs.

Abstract

This paper presents a synthesis of current-mode PID controllers employing current conveyors transconductance amplifier (CCTAs). The features of these controllers are: the output parameters can be independently controlled by passive elements and electronically controlled via adjusting correspondents bias currents in the PD and I controllers, circuit description of the PID controller which is simply formulated. It consists of 2 CCTAs cooperating with 4 grounded resistors and 2 grounded capacitors. This proposed circuit is very suitable to be developed into an integrated circuit. The given results of the PSpice simulation of bipolar transistor structure and IC AD844 with LM13700 agree well with the theoretical anticipation. The maximum power consumption in a closed loop control system obtaining the PID controller is approximately 0.998mW at ±1.5V and  0.132W at ±5V supply voltage, respectively, and the results of experiments with real equipment on the trail NI ELVIS with LabVIEW software are consistent with the theory as well.