Reducing spread resistance in high Q state variable filters Conference Paper uri icon


  • In this paper we propose a method to reduce the resistance spread in the high Q realizations of the KHN and Tow-Thomas state variable filters. This resistance spread is reduced by noting that a single resistor controls the value of the pole Q, thus by substituting this resistor by a T of resistor it is possible to reduce the spread by up to a factor of 10. Simulations confirm the proposed technique.

published proceedings

  • Proceedings - IEEE International Symposium on Circuits and Systems

author list (cited authors)

  • Baez-Lopez, D., Verdad, G., & Silva-Martinez, J.

complete list of authors

  • Baez-Lopez, D||Verdad, GEF||Silva-Martinez, J

publication date

  • January 1998