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A Comparative Analysis of Universal Filters using Current Conveyors

Affiliations

  • Department of Electronics and Communication Engineering, University College of Engineering Vizianagaram, JNTUK, Vizianagaram – 535003, Andhra Pradesh, India

Abstract


Objectives: Current mode of operation is drawing the attention of many researchers due to their potential advantages such as wider Bandwidth, greater gain, higher slew-rate, etc., So, the design of Universal filters in current mode is essential keeping in view of power, Bandwidth. Methods: This paper concentrates on the analysis of some of the Universal filter Topologies which are realized using second generation current conveyor. For each Topology, the detailed mathematical analysis is carried out using circuit analysis techniques.The transfer fucntion expressions is derived. The effects of floating and grounded point passive elements is brieffy discussed with respect to hardware complexity, Quality factor and resonat angular frequency. Findings: The main objective of the paper is to analyze and compare various universal filter topologies. The objective of the paper also focus on the selection of the current conveyor by studying various generations in it. The Universal filters are used to act like low pass, High pass Band pass and Band reject filters. The merits and demerits of each Topology is compared.It has been observed that Topology I uses as minimum number of componenets as possible. There is no independent control of Q-factor in all topologies. All current conveyors and different Topologies are simulated in MULTISIM 13.0. Application: The proposed circuits finds applications in many areas such as communication, controls, Signal processing, Instrumentation. The work can be extended to design universal filter circuits with lesser passive componets, better Q and Bandwidth values.

Keywords

Active Component, Circuit Analysis, Current Mode, Filter, Quality Factor Second Generation Current Conveyor, Topology, Universal Filter

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References


  • Mohan PVA. Current Mode VLSI Analog Filters. Birkhauser Boston; 2003 Jun. p. 453.
  • Smith KC, Sedra AS. The current conveyor-a new circuit building block. IEEE Proceeding on Circuits and Systems.1968 Aug; 56(8):1368–9.
  • Sedra AS, Smith KC. A second generation current conveyor and its application. IEEE Transaction on Circuit Theory.1970 Jan; 17(1):132–4. Crossref
  • Soliman AM. Current mode universal filter. Electronics Letters. 1995 Aug; 31(17):1420–1. Crossref
  • Sagbas M, Fidanboylu K, Bayram MC. A new currentmode multifunction filter with high impedance outputs using minimum number of passive elements. International Journal of Signal Processing. 2004 Jan; 1(4):352–6.
  • Ozoguz S, Toker A, Cicekoglu O. New current-mode universal filters using only four (CCII+)s. Microelectronics Journal. 1999 Mar; 30(3):255–8. Crossref
  • Wang HY, Lee CT. Versatile insensitive current mode universal biquad implementation using current conveyors.
  • IEEE Transactions on Circuits and Systems II. 2001 Apr; 48(4):409–13. Crossref
  • Horng JW. Current conveyors based current-mode universal biquadratic filter. Journal of the Chinese Institute of Electrical Engineering. 2002 May; 9(2):147–50.
  • Soliman AM. New current mode universal filters using single output current conveyors. Alta Frequenza. 1996 Nov; 8(6):42–4.
  • Senani R, Singh AK, Singh VK, Bhaskar DR. Tunable current-mode universal biquads employing only three MOCCs and all grounded passive elements. Journal of Telecommunications. 2005 Oct, 59(9):220–4.
  • Singh VK, Singh AK, Senani R. Dual function capability of recently proposed four-current conveyor-based VM biquad. Journal of Circuits, Systems and Computers. 2005 Feb; 14(1):51–6. Crossref
  • Soliman AM. Current-Mode Universal Filters Using Current Conveyors. Classification and Review. Journal of Circuits, Systems & Signal Process. 2008 Jun; 27(3):405–27.
  • Khan AA, Bimal S, Dey KK, Roy SS. A simple methodology for sinusoidal oscillator design based on simulation of differential equation using AD844 configured as secondgeneration current conveyor. Indian Journal of Science and Technology. 2010 June; 3(6):684–86.
  • Arora TS, Sharma RK. Adjoint-KHN Equivalent Realization of Current Mode Universal Biquad Employing Third Generation Current Conveyor. Indian Journal of Science and Technology. 2016 Apr; 9(13):1–8. Crossref

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