Current-mode PID controllers employing commercially available active components

Yurdem B., Sagbas M., AYTEN U. E.

AEU - International Journal of Electronics and Communications, cilt.175, 2024 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 175
  • Basım Tarihi: 2024
  • Doi Numarası: 10.1016/j.aeue.2023.155104
  • Dergi Adı: AEU - International Journal of Electronics and Communications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Applied Science & Technology Source, Compendex, Computer & Applied Sciences, INSPEC
  • Anahtar Kelimeler: AD844, Analog circuits, Current feedback operational amplifier, Current-mode circuits, PID controllers
  • Yıldız Teknik Üniversitesi Adresli: Evet

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.