Current-mode PID controllers employing commercially available active components
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Tarih
2024
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Yayıncı
Elsevier GmbH
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This work describes two current-mode (CM) PID controllers using only two commercially active components, namely, current feedback operational amplifier (CFOA), and four passive components, i.e. two capacitors and two resistors. They have appropriate output and input impedance values, allowing them to be utilized in cascade connections without requiring a buffer circuit. Since all capacitors are grounded, it is suitable for integrated circuit (IC) technology. Moreover, the controllers can be easily modified to operate in voltage-mode (VM), transimpedance-mode (TIM), and transadmittance-mode (TAM) PID controllers. Using 0.18 µm CMOS parameters and the PSPICE program, the proposed circuits are simulated to verify the theoretical behavior. To demonstrate the viability of the circuits, experimental tests using commercially available AD844 integrated circuits are performed. The suggested PID circuits are also experimental tested in a closed-loop system as an example. © 2023 Elsevier GmbH
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Anahtar Kelimeler
AD844; Analog circuits; Current feedback operational amplifier; Current-mode circuits; PID controllers, Closed loop systems; Controllers; Electric control equipment; Feedback amplifiers; Operational amplifiers; Proportional control systems; SPICE; Three term control systems; Timing circuits; Active components; Ad844; Current-feedback operational amplifiers; Current-mode circuit; Current-modes; Input impedance; Output and inputs; Output impedance; PID controllers; Two-resistors; Analog circuits
