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HERENCSÁR, N. KOTON, J. HORNG, J.-W. VRBA, K. VENCLOVSKÝ, M.
Original Title
Voltage-Mode CFTA-C Third-Order Elliptic Low-Pass Filter Design and Optimization Using Signal Flow Graph Approach
Type
journal article in Web of Science
Language
English
Original Abstract
In this work, two active only grounded-C equivalents of third-order voltage-mode (VM) elliptic low-pass (LP) LC ladder prototype are proposed. As active building blocks (ABBs) the recently introduced current follower transconductance amplifier (CFTA) were used. The first active only grounded-C LP filter employing eight CFTAs was proposed by interconnecting CFTA-based active equivalent sub-blocks of passive components, where one of the low-impedance input terminals is not used. Since such feature may cause some noise injection into the proposed circuit, the proposed filter was optimized using Mason-Coates' signal flow graph approach. In several steps the number of ABBs was reduced by two and the unused input terminal was eliminated. The performance of the novel and optimized active only grounded-C third-order VM elliptic LP filter was tested experimentally using the readily available UCC-N1B integrated circuit.
Keywords
Active equivalent; analog filters; current follower transconductance amplifier; CFTA; experiments; Mason-Coastes signal flow graph; LC ladder filter; optimization; passive prototype.
Authors
HERENCSÁR, N.; KOTON, J.; HORNG, J.-W.; VRBA, K.; VENCLOVSKÝ, M.
RIV year
2015
Released
15. 4. 2015
Publisher
Kaunas University of Technology
ISBN
1392-1215
Periodical
Elektronika Ir Elektrotechnika
Year of study
21
Number
2
State
Republic of Lithuania
Pages from
24
Pages to
29
Pages count
6
URL
https://eejournal.ktu.lt/index.php/elt/article/view/11508
Full text in the Digital Library
http://hdl.handle.net/11012/201374
BibTex
@article{BUT114121, author="Norbert {Herencsár} and Jaroslav {Koton} and Jiun-Wei {Horng} and Kamil {Vrba} and Martin {Venclovský}", title="Voltage-Mode CFTA-C Third-Order Elliptic Low-Pass Filter Design and Optimization Using Signal Flow Graph Approach", journal="Elektronika Ir Elektrotechnika", year="2015", volume="21", number="2", pages="24--29", doi="10.5755/j01.eee.21.2.11508", issn="1392-1215", url="https://eejournal.ktu.lt/index.php/elt/article/view/11508" }