Akademik Veri Yönetim Sistemi
Global Conference on Engineering Research (GLOBCER), Balıkesir, Türkiye, 2 - 05 Haziran 2021, ss.165-178, (Tam Metin Bildiri)
This paper presents a novel voltage-mode proportional-integral-derivative, namely PID controller based on current follower transconductance amplifier. The proposed circuit consists of two current follower transconductance amplifiers, four resistors, and two capacitors. The proposed PID controller does not require any passive components matching condition. The sensitivities of the control parameters have been analyzed in ideal and non-ideal conditions. Further, the effects of parasitic impedances on the operating frequency range have been investigated. It also describes a design procedure for selecting passive elements to achieve the desired control parameters. The advantages of the proposed PID controller are the electronically tuning of control parameters and having low sensitivity with respect to active and passive element variation. Simulation results have been performed with the LTspice program using 0.18 μm TSMC CMOS technology parameters. The symmetric power supply is set to ±0.6 V. The total power dissipation of the proposed PID controller is 1.12 mW. The gain and phase responses of the proposed PID controller are presented. The results are compared with the ideal PID controller’s frequency response. Monte Carlo analyzes have been carried out to show the robustness of the circuit. Besides, the sensitivity of the proposed PID controller to temperature has been investigated by temperature analysis. In order to demonstrate the usefulness of the circuit, as an application example, a unit feedback closed-loop control system has been designed to improve the filter's step response. Time and frequency domain simulation results verify the theoretical analysis of the proposed PID controller. Additionally, a comparison of the proposed VM PID controller with the relevant circuits previously published in the literature is presented.