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Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter

This article presents a mixed-mode electronically tunable first-order universal filter configuration employing only one voltage differencing gain amplifier (VDGA), one capacitor, and one grounded resistor. With the appropriate selection of the input signals, the proposed circuit can realize all thre...

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Detalles Bibliográficos
Autores principales: Roongmuanpha, Natchanai, Likhitkitwoerakul, Nutcha, Fukuhara, Masaaki, Tangsrirat, Worapong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007470/
https://www.ncbi.nlm.nih.gov/pubmed/36904956
http://dx.doi.org/10.3390/s23052759
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author Roongmuanpha, Natchanai
Likhitkitwoerakul, Nutcha
Fukuhara, Masaaki
Tangsrirat, Worapong
author_facet Roongmuanpha, Natchanai
Likhitkitwoerakul, Nutcha
Fukuhara, Masaaki
Tangsrirat, Worapong
author_sort Roongmuanpha, Natchanai
collection PubMed
description This article presents a mixed-mode electronically tunable first-order universal filter configuration employing only one voltage differencing gain amplifier (VDGA), one capacitor, and one grounded resistor. With the appropriate selection of the input signals, the proposed circuit can realize all three first-order standard filter functions, namely low pass (LP), high pass (HP), and all pass (AP), in all four possible modes, including voltage mode (VM), trans-admittance mode (TAM), current mode (CM), and trans-impedance mode (TIM), from the same circuit structure. It also provides an electronic tuning of the pole frequency and the passband gain by varying transconductance values. Non-ideal and parasitic effect analyses of the proposed circuit were also carried out. PSPICE simulations and experimental findings have both confirmed the performance of the design. A number of simulations and experimental observations confirm the viability of the suggested configuration in practical applications.
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spelling pubmed-100074702023-03-12 Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter Roongmuanpha, Natchanai Likhitkitwoerakul, Nutcha Fukuhara, Masaaki Tangsrirat, Worapong Sensors (Basel) Article This article presents a mixed-mode electronically tunable first-order universal filter configuration employing only one voltage differencing gain amplifier (VDGA), one capacitor, and one grounded resistor. With the appropriate selection of the input signals, the proposed circuit can realize all three first-order standard filter functions, namely low pass (LP), high pass (HP), and all pass (AP), in all four possible modes, including voltage mode (VM), trans-admittance mode (TAM), current mode (CM), and trans-impedance mode (TIM), from the same circuit structure. It also provides an electronic tuning of the pole frequency and the passband gain by varying transconductance values. Non-ideal and parasitic effect analyses of the proposed circuit were also carried out. PSPICE simulations and experimental findings have both confirmed the performance of the design. A number of simulations and experimental observations confirm the viability of the suggested configuration in practical applications. MDPI 2023-03-02 /pmc/articles/PMC10007470/ /pubmed/36904956 http://dx.doi.org/10.3390/s23052759 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Roongmuanpha, Natchanai
Likhitkitwoerakul, Nutcha
Fukuhara, Masaaki
Tangsrirat, Worapong
Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter
title Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter
title_full Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter
title_fullStr Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter
title_full_unstemmed Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter
title_short Single VDGA-Based Mixed-Mode Electronically Tunable First-Order Universal Filter
title_sort single vdga-based mixed-mode electronically tunable first-order universal filter
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10007470/
https://www.ncbi.nlm.nih.gov/pubmed/36904956
http://dx.doi.org/10.3390/s23052759
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