High output impedance current-mode universal filter with independent control of pole frequency and quality factor

  • Authors:

  • Surapong Siripongdee;Sunti Tuntrakool;Winai Jaikla

  • Affiliations:

  • Department of Engineering Education, Faculty of Industrial Education, King Mongkut's Institute of Technology Ladkrabag, Ladkrabang, Bangkok, Thailand;Department of Engineering Education, Faculty of Industrial Education, King Mongkut's Institute of Technology Ladkrabag, Ladkrabang, Bangkok, Thailand;Department of Engineering Education, Faculty of Industrial Education, King Mongkut's Institute of Technology Ladkrabag, Ladkrabang, Bangkok, Thailand

  • Venue:
  • IMMURO'12 Proceedings of the 11th WSEAS international conference on Instrumentation, Measurement, Circuits and Systems, and Proceedings of the 12th WSEAS international conference on Robotics, Control and Manufacturing Technology, and Proceedings of the 12th WSEAS international conference on Multimedia Systems & Signal Processing
  • Year:
  • 2012

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Abstract

This article presents a current-mode universal filter based-on parallel RLC circuit using CCCIIs as active element. The pole frequency and quality factor can be electronically/orthogonally controlled via input bias currents. The circuit description consists of merely 4 CCCIIs and 2 capacitors. Without any external resistors, the proposed circuit is then suitable for IC architecture. The proposed circuit due to high output impedances enable easy cascading in current-mode. The PSPICE simulation results are depicted, and the given results agree well with the theoretical anticipation.