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Multifunctional current-mode filter with dual-parameter control of the pole frequencyJERABEK, J.   , DVORAK, J. , SOTNER, R. , METIN, B. , VRBA, K. |
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Author keywords
active filters, circuit analysis, circuit synthesis, current-mode circuits, tunable circuits and devices
References keywords
current(52), filter(29), mode(27), universal(20), electronics(13), circuits(12), systems(11), single(10), controlled(10), biquad(10)
Blue keywords are present in both the references section and the paper title.
About this article
Date of Publication: 2016-08-31
Volume 16, Issue 3, Year 2016, On page(s): 31 - 36
ISSN: 1582-7445, e-ISSN: 1844-7600
Digital Object Identifier: 10.4316/AECE.2016.03005
Web of Science Accession Number: 000384750000005
SCOPUS ID: 84991113072
Abstract
This paper presents a multifunctional current-mode filter with dual-parameter control of the pole frequency. The filter is of the second order, of single-input triple-output (SITO) type and a required type of the response (low pass, inverting band pass, high pass, band reject and all pass) is obtained by proper selection of one or more outputs. The filter employs two capacitors, two operational transconductance amplifiers (OTAs), each of them with controllable transconductance, and two digitally adjustable current amplifiers (DACAs), providing controllable current gain. Both these controllable parameters directly influence pole frequency of the filter. The theoretical presumptions were confirmed by laboratory measurements. |
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[1] A Programmable Biopotential Aquisition Front-end with a Resistance-free Current-balancing Instrumentation Amplifier, FARAGO, P., GROZA, R., HINTEA, S., SOSER, P., Advances in Electrical and Computer Engineering, ISSN 1582-7445, Issue 2, Volume 18, 2018.
Digital Object Identifier: 10.4316/AECE.2018.02011 [CrossRef] [Full text]
[2] Dual-Mode Single-Input Three-Output Multifunction Filter and Quadrature Oscillator Consisting of Two Voltage Differencing Transconductance Amplifiers and Two Grounded Capacitors, Tangsrirat, W., Channumsin, O., Unhavanich, S., Pukkalanun, T., Journal of Communications Technology and Electronics, ISSN 1064-2269, Issue 4, Volume 68, 2023.
Digital Object Identifier: 10.1134/S1064226923040149 [CrossRef]
[3] Experimental Verification of Pseudo-Differential Electronically Controllable Multifunction Filter Using Modified Current Differencing/Summing Units, Jerabek, Jan, Dvorak, Jan, Sotner, Roman, Herencsar, Norbert, Koton, Jaroslav, Journal of Circuits, Systems and Computers, ISSN 0218-1266, Issue 06, Volume 28, 2019.
Digital Object Identifier: 10.1142/S0218126619500981 [CrossRef]
[4] Single active parameter tunable simple band-pass filter: Methods for tunability range extension, Sotner, Roman, Petrzela, Jiri, Domansky, Ondrej, Langhammer, Lukas, Dostal, Tomas, 2017 MIXDES - 24th International Conference "Mixed Design of Integrated Circuits and Systems, ISBN 978-83-63578-12-1, 2017.
Digital Object Identifier: 10.23919/MIXDES.2017.8005223 [CrossRef]
[5] Exponentially tunable voltage controlled quadrature oscillator, Sotner, Roman, Jerabek, Jan, Petrzela, Jiri, Domansky, Ondrej, Jaikla, Winai, Dostal, Tomas, 2017 40th International Conference on Telecommunications and Signal Processing (TSP), ISBN 978-1-5090-3982-1, 2017.
Digital Object Identifier: 10.1109/TSP.2017.8075992 [CrossRef]
[6] SITO Current-Mode Multifunction Biquad Using Readily Available IC LT1228s, Roongmuanpha, Natchanai, Tangsrirat, Worapong, 2020 6th International Conference on Engineering, Applied Sciences and Technology (ICEAST), ISBN 978-1-7281-9978-8, 2020.
Digital Object Identifier: 10.1109/ICEAST50382.2020.9165538 [CrossRef]
[7] Fully-Differential Universal Frequency Filter with Dual-Parameter Control of the Pole Frequency and Quality Factor, Langhammer, Lukas, Sotner, Roman, Dvorak, Jan, Jerabek, Jan, Zapletal, Miroslav, 2018 IEEE International Symposium on Circuits and Systems (ISCAS), ISBN 978-1-5386-4881-0, 2018.
Digital Object Identifier: 10.1109/ISCAS.2018.8351005 [CrossRef]
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Faculty of Electrical Engineering and Computer Science
Stefan cel Mare University of Suceava, Romania
All rights reserved: Advances in Electrical and Computer Engineering is a registered trademark of the Stefan cel Mare University of Suceava. No part of this publication may be reproduced, stored in a retrieval system, photocopied, recorded or archived, without the written permission from the Editor. When authors submit their papers for publication, they agree that the copyright for their article be transferred to the Faculty of Electrical Engineering and Computer Science, Stefan cel Mare University of Suceava, Romania, if and only if the articles are accepted for publication. The copyright covers the exclusive rights to reproduce and distribute the article, including reprints and translations.
Permission for other use: The copyright owner's consent does not extend to copying for general distribution, for promotion, for creating new works, or for resale. Specific written permission must be obtained from the Editor for such copying. Direct linking to files hosted on this website is strictly prohibited.
Disclaimer: Whilst every effort is made by the publishers and editorial board to see that no inaccurate or misleading data, opinions or statements appear in this journal, they wish to make it clear that all information and opinions formulated in the articles, as well as linguistic accuracy, are the sole responsibility of the author.
