Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:A4L-B
Session:
Number:A4L-B-1
Realization of Fractional-Order Capacitor and Inductor Emulators Using Current Feedback Operational Amplifiers
Ilias Dimeas, Georgia Tsirimokou, Costas Psychalinos, Ahmed S. Elwakil,
pp.237-240
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
Fractional-order capacitor and inductor emulators using Current Feedback Operational Amplifiers as active elements are presented in this paper. Both schemes have been designed by combining fractional-order differentiator or integrator topologies with a voltage-to-current converter. The realization of the fractional-order differentiation and integration blocks is performed through the employment of an integer-order multi-feedback filter topology. An important benefit, from the design flexibility point of view, is that the same topology could be used for emulating both fractional-order capacitor and inductor, and this is achieved through an appropriate selection of the time-constants and gain factors. The behavior of the proposed emulators has been studied through the OrCAD PSpice simulator, using the model of the commercially available AD844 discrete IC component as Current Feedback Operational Amplifier.