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Versatile voltage-mode quadrature oscillator circuit using DDCCs
Author(s)
Date Issued
December 21, 2011
Type
Conference Paper
Abstract
This paper presents a new versatile voltage-mode quadrature oscillator circuit using three differential difference current conveyors, two grounded capacitors and three grounded resistors. Unlike the previously reported quadrature oscillator, the proposed circuit can realize a quadrature oscillator and a universal filter without changing the circuit topology. When the circuit works as a quadrature oscillator, it provides the following advantages: the oscillation condition and oscillation frequency are orthogonally controllable and the circuit enjoy interactive frequency control. Alternatively, when the circuit functions as a universal filter, it can realize low-pass, band-pass, high-pass, band-stop and all-pass voltage responses. The parameters o and Q can be independently controlled. Simulation results verifying the theoretical analysis are also included. © 2011 IEEE.
Citation
Iswta 2011 2011 IEEE Symposium on Wireless Technology and Applications, 44-47, 2011