New tunable synthetic floating inductors

Abstract

Three new active RC synthetic floating inductance circuits are proposed which realise lossless f.i. and series and parallel RL impedance, respectively employing three and two second-generation current conveyors as active elements. The novel features of the new circuits are that (i) in contrast to available operational-amplifier circuits for f.i.s, the circuits presented here do not require component matching for the desired realisation; (ii) the new circuits employ a minimum possible number of passive elements (only two resistors and a capacitor); (ii) in all the new circuits, the inductance value is independently controllable through a single resistance.