NEW GENERAL IMMITTANCE CONVERTER JFET VOLTAGE-CONTROLLED IMPEDANCES AND THEIR APPLICATIONS TO CONTROLLED BIQUADS SYNTHESIS

Authors
LEUCIUC A GORAS L
Citation
A. Leuciuc et L. Goras, NEW GENERAL IMMITTANCE CONVERTER JFET VOLTAGE-CONTROLLED IMPEDANCES AND THEIR APPLICATIONS TO CONTROLLED BIQUADS SYNTHESIS, IEEE transactions on circuits and systems. 1, Fundamental theory andapplications, 45(6), 1998, pp. 678-682
Citations number
13
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
IEEE transactions on circuits and systems. 1, Fundamental theory andapplications → ACNP
ISSN journal
10577122
Volume
45
Issue
6
Year of publication
1998
Pages
678 - 682
Database
ISI
SICI code
1057-7122(1998)45:6<678:NGICJV>2.0.ZU;2-M
Abstract
Two new general immittance converter (GIC) JFET configurations for the realization of voltage-controlled impedances (VCI's) are proposed. Co mpared with previously reported structures, the circuits exhibit wide dynamic range and low distortion properties that are frequency indepen dent, even for nonresistive VCI's. We consider the influence of op-amp s frequency dependent gain and derive conditions for obtaining high Q- factor inductances and capacitances. We also present computed and expe rimental results for several voltage-controlled GIC-type biquads that are built based on the proposed circuits.