Systematic synthesis approach for floating gyrators employing single z-copy CCCCTA

• Published in: IET circuits, devices & systems devices & systems, 2017-01, Vol.11 (1), p.41-45
• Main Authors: Li, Yong An, Xi, Yan Hua, Fan, Zhan Ting, Zhang, Yu Ye, Wu, Ji Xia
• Format: Article
• Language: English
• Subjects: Amplification; amplifiers; CCCCTA; Circuits; Current conveyors; Devices; Electrical impedance; floating gyrator; grounded admittance; Gyrators; hand analysis; Mathematical models; matrix algebra; NAM expansion method; Nodal admittance matrix; nodal admittance matrix expansion method; pathological models; PSPICE simulation; Simulation; single z-copy CCCCTA; single z-copy current-controlled current conveyor trans-conductance amplifier; Synthesis; systematic synthesis approach; z-copy z+-output CCCCTA; z-copy z−-output CCCCTA
• ISSN: 1751-858X; 1751-8598; 1751-8598
• DOI: 10.1049/iet-cds.2016.0153

A systematic synthesis approach for floating gyrators employing single z-copy current-controlled current conveyor trans-conductance amplifier (CCCCTA) is presented in this work. Initially, the pathological models of two types of the CCCCTA, namely z-copy z+-output CCCCTA (CCCCTA+) and z-copy z−-output CCCCTA (z-copy CCCCTA−), are derived by virtue of the nodal admittance matrix (NAM) expansion method. Moreover, these models are then used in the synthesis of floating gyrator using single z-copy CCCCTA. Two floating gyrators are acquired by expanding the NAM of floating gyrator. The synthesised gyrators employ one z-copy CCCCTA and a grounded admittance. Adjusting bias currents of the CCCCTA can tune the parameter of the gyrators. The hand analysis and PSPICE simulation show that the used synthesis method is simple, systematic and valid.