This research paper presents a new design of programmable analog electronic proportional-integral-derivative controller circuit using current conveyor transconductance amplifiers as active elements. Unlike previous works, proportional controller, proportional-integral controller, proportional-derivative controller and proportional-integral-derivative controller of proposed structure can be digitally programmed by the bias currents. Also proportional gain, integral time constant and derivative time constant can be electronically controlled. The use of CCTA as active elements makes the proposed structure suitable for integrated circuit implementation. The operation of the proposed circuit was confirmed by using OrCAD/Pspice simulator program. The simulation results are found to agree well with the theory
Key words : Digitally programmable circuit, Current conveyor transconductance amplifier, PID controller
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245 a : Title
วงจรตัวควบคุม P PI PD และ PID ที่โปรแกรมได้โดยใช้วงจร CCTA : PROGRAMMABLE P, PI, PD AND PID CONTROLLER CIRCUITS USING CCTAs
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