Advertisement

Current-Mode Synthesis Using Node Expansion Techniques

  • Mehul Desai
  • Peter Aronhime
Chapter

Abstract

This paper derives node expansion methods by which a given passive network and its nodal admittance matrix are modified by expanding a node into two nodes and introducing a nullor or a dependent source between the newly created nodes. Node expansion provides a systematic method to introduce active elements in a network. The elements of the admitance matrix are modified, but the dimensions of the matrix are unchanged. These methods, which can be applied repetitively, are used to derive filters and oscillators from parental passive networks in a systematic manner.

Keywords

Original Network Distinct Node Dependent Source Admittance Matrix Passive Network 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Toumazou, C., Lidgey, F. and Haigh, D., Analogue IC Design: The Current-mode Approach. London: Peter Peregrinus Ltd., pp. 164–169, 1990.Google Scholar
  2. 2.
    Roberts, G. and Sedra, A., “All current-mode frequency selective circuits,” Electronics Letters, Vol. 25, pp. 759–761, June 1989.CrossRefGoogle Scholar
  3. 3.
    Roberts, G. and Sedra, A., “A general class of current amplifier-based biquadratic filter circuits,” IEEE Trans. Circuits Syst., Part I, Vol. 39, pp. 257–263, April 1992.zbMATHGoogle Scholar
  4. 4.
    Carlosena, A. and Moschytz, G., “Nullators and norators in voltage-to current-mode transformations;” Int. J. Microelectronics,(to be published).Google Scholar
  5. 5.
    Stevenson, J., “Use of reciprocity and duality to generate equivalent active-RC networks:” in Proc. IEEE /nt. Symp. Circuits and Systems, Kyoto, Japan, pp. 821–822, May 1985.Google Scholar
  6. 6.
    Guo-hua, W., Watanabe, K. and Fukui, Y., “An extended dual transformation approach to current-mode synthesis;” in Proc. IEEE /nt. Symp. Circuits and Systems, New Orleans, LA, pp. 2294–2295, May 1990.Google Scholar
  7. 7.
    Guo-hua, W., Fukui, Y. Kuboto, K. and Watanabe, K., “Voltage-mode to current-mode transformation using the extended dual transformation.” in Proc. IEEE Int. Symp. Circuits and Systems, Singapore, pp. 1833–1834, June 1991.Google Scholar
  8. 8.
    Davies, A., Matrix analysis of networks containing nullators and norators; ElectronicsLetters, Vol. 2, pp. 48–50, Feb. 1966.Google Scholar
  9. 9.
    Davies, A., “The significance of nullators, norators and nullors in active network theory,” The Radio and Electronic Engineer, pp. 259–267, Nov, 1967.Google Scholar
  10. 10.
    Bruton, L., RC-Active Circuits Theory and Design. Englewood Cliffs: Prentice-Hall, 1980.Google Scholar
  11. 11.
    Lin, S., Tsao, H. and Wu, J., “Cascadable current-mode single CCII-biquads,” Electronics Letters, Vol. 26, pp. 2005–2007, Nov. 1990.CrossRefGoogle Scholar
  12. 12.
    Higashimaura. M., Fukui, Y. and Ishida, M., “Synthesis of current-mode transfer functions using a single current conveyor,” Microelectronics Journal, Vol. 22, pp. 35–46, Nov. 1991.CrossRefGoogle Scholar
  13. 13.
    Liu, S., Kuo, J. and Tsay, J., New CCII-based current-mode biquadratic filters, Int. J. Electronics, Vol. 72, pp. 243–252, 1992.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Mehul Desai
    • 1
  • Peter Aronhime
    • 1
  1. 1.Department of Electrical EngineeringUniversity of LouisvilleLouisvilleUSA

Personalised recommendations