A configuration for realizing floating, linear, voltage-controlled resistance, inductance and FDNC elements

  • Authors:

  • R. Senani;D. R. Bhaskar;S. S. Gupta;V. K. Singh

  • Affiliations:

  • Analog Signal Processing Research Laboratory, Electronics and Communication Engineering Department, Netaji Subhas Institute of Technology (formerly, Delhi Institute of Technology), Azad Hind Fauj ...;Department of Electronics and Communication Engineering, Faculty of Engineering and Technology, Jamia Millia Islamia, New Delhi 110 025, India;Department of Industrial Policy & Promotion, Ministry of Industry, Udyog Bhawan, New Delhi 110 011, India;Department of Electronics Engineering, Institute of Engineering and Technology, Sitapur Road, Aliganj, Lucknow 226 021, India

  • Venue:
  • International Journal of Circuit Theory and Applications
  • Year:
  • 2009

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Abstract

A configuration using current feedback amplifiers has been presented, which is capable of realizing linear, positive-negative voltage-controlled resistance, voltage-controlled inductance and voltage-controlled frequency-dependent negative conductance in floating form (and thereby, also in grounded form) from the same structure. The workability of the proposed configuration has been demonstrated by hardware implementation results using AD 844-type current feedback op-amps (CFOAs) and BFW-11-type JFETs and the workability in high-frequency range has been demonstrated by SPICE simulation using CMOS CFOAs. Copyright © 2008 John Wiley & Sons, Ltd.