A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design

A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design

This paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VG...

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Main Authors: Norbert Herencsar, Jaroslav Koton, Abhirup Lahiri, Bilgin Metin, Kamil Vrba
Format: Article
Language:English
Published: International Science and Engineering Society, o.s. 2012-07-01
Series:International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
Online Access:http://ijates.org/index.php/ijates/article/view/27
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spelling doaj-ecd7e2d3e16041159bf787dc1796f5d72020-11-24T22:51:08ZengInternational Science and Engineering Society, o.s.International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems1805-54432012-07-0111202510.11601/ijates.v1i1.278A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter DesignNorbert Herencsar0Jaroslav Koton1Abhirup LahiriBilgin Metin2Kamil Vrba3Brno University of TechnologyBrno University of TechnologyBogazici UniversityBrno University of TechnologyThis paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VGC-MCFOA, single grounded capacitor, and three resistors. Introduced circuit provides all four possible transfer functions at the same configuration, namely current-mode, transimpedance-mode, transadmittance-mode, and voltage-mode. The pole frequency of the circuit can be easily tuned by means of DC bias currents. The theoretical results are verified by SPICE simulations based on bipolar transistor arrays AT&T ALA400-CBIC-R process parameters.http://ijates.org/index.php/ijates/article/view/27
collection DOAJ
language English
format Article
sources DOAJ
author Norbert Herencsar
Jaroslav Koton
Abhirup Lahiri
Bilgin Metin
Kamil Vrba
spellingShingle Norbert Herencsar
Jaroslav Koton
Abhirup Lahiri
Bilgin Metin
Kamil Vrba
A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design
International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
author_facet Norbert Herencsar
Jaroslav Koton
Abhirup Lahiri
Bilgin Metin
Kamil Vrba
author_sort Norbert Herencsar
title A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design
title_short A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design
title_full A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design
title_fullStr A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design
title_full_unstemmed A Voltage Gain-Controlled Modified CFOA And Its Application in Electronically Tunable Four-Mode All-Pass Filter Design
title_sort voltage gain-controlled modified cfoa and its application in electronically tunable four-mode all-pass filter design
publisher International Science and Engineering Society, o.s.
series International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
issn 1805-5443
publishDate 2012-07-01
description This paper presents a new active building block (ABB) called voltage gain-controlled modified current feedback amplifier (VGC-MCFOA) based on bipolar junction transistor technology. The versatility of the new ABB is demonstrated in new first-order all-pass filter structure design employing single VGC-MCFOA, single grounded capacitor, and three resistors. Introduced circuit provides all four possible transfer functions at the same configuration, namely current-mode, transimpedance-mode, transadmittance-mode, and voltage-mode. The pole frequency of the circuit can be easily tuned by means of DC bias currents. The theoretical results are verified by SPICE simulations based on bipolar transistor arrays AT&T ALA400-CBIC-R process parameters.
url http://ijates.org/index.php/ijates/article/view/27
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