Realization of Voltage and Current Mode KHN Biquads Using CCCIIs |
| |
Authors: | Ercan Altunta Ali Toker |
| |
Affiliation: | aAlcatel Teletaş 1. EsenşehirAtatürk Cad. 81260, Y. Dudullu, Istanbul, Turkey.;bIstanbul Technical University, Faculty of Electrical and Electronics Engineering, Department of Electronics and Communication Eng., 80626 Maslak, Istanbul, Turkey. |
| |
Abstract: | 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 conveyor(CCIIs) and resistors at their x-input terminals with CCCIIs. On the other hand, 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 all pass responses. |
| |
Keywords: | Active filters Current controlled current conveyor Kerwin-Huelsman-Newcomb filter |
本文献已被 ScienceDirect 等数据库收录! |
|