Table of Contents
ISRN Electronics
Volume 2013, Article ID 385062, 8 pages
Research Article

Third-Order Quadrature Oscillator Circuit with Current and Voltage Outputs

1Department of Electronics and Communication Engineering, Jaypee Institute of Information Technology, Noida 201304, India
2Department of Electronics Engineering, Z. H. College of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India

Received 9 July 2013; Accepted 12 August 2013

Academic Editors: C. W. Chiou, H. L. Hartnagel, and E. Tlelo-Cuautle

Copyright © 2013 Bhartendu Chaturvedi and Sudhanshu Maheshwari. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The paper presents a new quadrature oscillator of third order which can provide four quadrature current outputs and two quadrature voltage outputs. The new circuit employs three differential voltage current conveyors and six passive components, most of which are in grounded form. Circuit operation at high frequencies is verified along with nonideality and parasitic study. The circuit enhancement for generation of four phase clock waveforms is also given. The proposed circuit is a novel addition to the oscillator family.