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Modelling and Simulation in Engineering
Volume 2012, Article ID 184829, 6 pages
Research Article

Supplementary High-Input Impedance Voltage-Mode Universal Biquadratic Filter Using DVCCs

1Department of Electronics and Communications, 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 April 2012; Accepted 12 July 2012

Academic Editor: Andrzej Dzielinski

Copyright © 2012 Jitendra Mohan 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.


To further extend the existing knowledge on voltage-mode universal biquadratic filter, in this paper, a new biquadratic filter circuit with single input and multiple outputs is proposed, employing three differential voltage current conveyors (DVCCs), three resistors, and two grounded capacitors. The proposed circuit realizes all the standard filter functions, that is, high-pass, band-pass, low-pass, notch, and all-pass filters simultaneously. The circuit enjoys the feature of high-input impedance, orthogonal control of resonance angular frequency ( 𝜔 o ), and quality factor (Q) via grounded resistor and the use of grounded capacitors which is ideal for IC implementation.