Generalised Fractional-Order Oscillators using OTA

Abstract

This paper presents two generalized oscillator configurations employing three operational transconductance amplifiers (OTAs) and two fractional-order capacitors. General fractional-order oscillator theorems are used for analysis and derivation of generalized expressions for condition of oscillation (CO), frequency of oscillation (FO) and phase involving parameters of fractional-order element (FOE). LM13700 type OTA’s library file has been used in Pspice simulation for verification of the working of oscillator configurations detailed in this communication.