This article presents realisations of single-resistance-controlled-oscillators (SRCOs) using the recently proposed modern active building block (ABB), namely the generalised current follower transconductance amplifier (GCFTA) and unity-gain voltage-follower (UGVF). The SRCO is made using reduced number of components: one GCFTA and one UGVF as the ABBs, two resistors and two grounded capacitors. The circuit offers the advantage of non-interactive control of condition of oscillation and frequency of oscillation and enjoys low active and passive sensitivities. The circuit is also capable of providing two quadrature voltage outputs. PSPICE simulations have been carried out using the bipolar implementation of the circuits. The simulation results validate the theoretical analysis.

This paper proposes a generalised impedance convertor using dual-output second-generation current conveyors (DO-CCIIs) that can simulate floating inductance, capacitive multiplier and frequency dependent negative resistor (FDNR). The proposed circuit employs only two DO-CCIIs and three passive elements. The circuit is canonic/minimal in the number of passive components and can be easily modified to simulate voltage tunable floating impedances. PSPICE simulation results are included that validate the working of the circuit.