Realization of voltage and current mode KHN biquads using CCCIIs


Altuntas E., Toker A.

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, cilt.56, ss.45-49, 2002 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 56 Konu: 1
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1078/1434-8411-54100071
  • Dergi Adı: AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
  • Sayfa Sayıları: ss.45-49

Özet

In this work, new Kerwin-Huelsman-Newcomb (KHN) biquads employing current-controlled current conveyors (CCCIIs) in voltage-mode (VM) as well as in current-mode (CM) are presented. The parameters of the proposed circuits can be electronically controlled thanks to the tunability properties of the CCCIIs. The VM circuit is derived from a previously reported one by modifying its summing circuit and replacing the current conveyors (CCIIs) and resistors at their x-input terminals with CCCIIs. On the other band, the CM circuit is derived from the adjoint graph of the signal-flow graph corresponding to the classical KHN circuit. This circuit is a multi-input single-output CM universal filter, which offers all the main advantages of the CM circuits as well as those of the classical KHN circuit. In addition to the three basic filter responses, they also allow the realization of the notch and the allpass responses.