Capacitive driven-right-leg circuit design

Autores
Haberman, Marcelo Alejandro; Spinelli, Enrique Mario; García, Pablo Andrés; Guerrero, Federico Nicolás
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Capacitive electrodes allow to pick-up biopotentials through a dielectric layer, without using electrolytes. However, this technique is vulnerable to electric-field interference, mainly to common mode voltages produced by the 50 Hz power-line. A fully Capacitive Driven Right Leg (CDRL) circuit is proposed to reduce the patient common mode voltage vCM. The design of this circuit takes into account several factors as electrode impedance, stray coupling capacitances and amplifier transfer function response. All these parameters are addressed to ensure the circuit’s stability in most biopotential acquisition scenarios. Monte Carlo analyses were performed to find the worst conditions, resulting in a maximum CDRL gain between 70 and 80 dB. The CDRL was implemented as an independent block that can be used for different applications such as ECG, EMG or EEG. Several experimental results are presented, showing good quality recordings even using SE amplifiers, an appropriate approach for multichannel acquisition systems.
Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señales
Materia
Ingeniería Electrónica
Capacitive electrodes
Insulating electrodes
Common-mode interference
Driven-right-leg circuit
Non-contact measurements
Biopotential
Biomedical
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/127572

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network_name_str SEDICI (UNLP)
spelling Capacitive driven-right-leg circuit designHaberman, Marcelo AlejandroSpinelli, Enrique MarioGarcía, Pablo AndrésGuerrero, Federico NicolásIngeniería ElectrónicaCapacitive electrodesInsulating electrodesCommon-mode interferenceDriven-right-leg circuitNon-contact measurementsBiopotentialBiomedicalCapacitive electrodes allow to pick-up biopotentials through a dielectric layer, without using electrolytes. However, this technique is vulnerable to electric-field interference, mainly to common mode voltages produced by the 50 Hz power-line. A fully Capacitive Driven Right Leg (CDRL) circuit is proposed to reduce the patient common mode voltage vCM. The design of this circuit takes into account several factors as electrode impedance, stray coupling capacitances and amplifier transfer function response. All these parameters are addressed to ensure the circuit’s stability in most biopotential acquisition scenarios. Monte Carlo analyses were performed to find the worst conditions, resulting in a maximum CDRL gain between 70 and 80 dB. The CDRL was implemented as an independent block that can be used for different applications such as ECG, EMG or EEG. Several experimental results are presented, showing good quality recordings even using SE amplifiers, an appropriate approach for multichannel acquisition systems.Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señales2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf115-126http://sedici.unlp.edu.ar/handle/10915/127572enginfo:eu-repo/semantics/altIdentifier/issn/1752-6418info:eu-repo/semantics/altIdentifier/issn/1752-6426info:eu-repo/semantics/altIdentifier/doi/10.1504/ijbet.2015.068051info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:02:54Zoai:sedici.unlp.edu.ar:10915/127572Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:02:54.621SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Capacitive driven-right-leg circuit design
title Capacitive driven-right-leg circuit design
spellingShingle Capacitive driven-right-leg circuit design
Haberman, Marcelo Alejandro
Ingeniería Electrónica
Capacitive electrodes
Insulating electrodes
Common-mode interference
Driven-right-leg circuit
Non-contact measurements
Biopotential
Biomedical
title_short Capacitive driven-right-leg circuit design
title_full Capacitive driven-right-leg circuit design
title_fullStr Capacitive driven-right-leg circuit design
title_full_unstemmed Capacitive driven-right-leg circuit design
title_sort Capacitive driven-right-leg circuit design
dc.creator.none.fl_str_mv Haberman, Marcelo Alejandro
Spinelli, Enrique Mario
García, Pablo Andrés
Guerrero, Federico Nicolás
author Haberman, Marcelo Alejandro
author_facet Haberman, Marcelo Alejandro
Spinelli, Enrique Mario
García, Pablo Andrés
Guerrero, Federico Nicolás
author_role author
author2 Spinelli, Enrique Mario
García, Pablo Andrés
Guerrero, Federico Nicolás
author2_role author
author
author
dc.subject.none.fl_str_mv Ingeniería Electrónica
Capacitive electrodes
Insulating electrodes
Common-mode interference
Driven-right-leg circuit
Non-contact measurements
Biopotential
Biomedical
topic Ingeniería Electrónica
Capacitive electrodes
Insulating electrodes
Common-mode interference
Driven-right-leg circuit
Non-contact measurements
Biopotential
Biomedical
dc.description.none.fl_txt_mv Capacitive electrodes allow to pick-up biopotentials through a dielectric layer, without using electrolytes. However, this technique is vulnerable to electric-field interference, mainly to common mode voltages produced by the 50 Hz power-line. A fully Capacitive Driven Right Leg (CDRL) circuit is proposed to reduce the patient common mode voltage vCM. The design of this circuit takes into account several factors as electrode impedance, stray coupling capacitances and amplifier transfer function response. All these parameters are addressed to ensure the circuit’s stability in most biopotential acquisition scenarios. Monte Carlo analyses were performed to find the worst conditions, resulting in a maximum CDRL gain between 70 and 80 dB. The CDRL was implemented as an independent block that can be used for different applications such as ECG, EMG or EEG. Several experimental results are presented, showing good quality recordings even using SE amplifiers, an appropriate approach for multichannel acquisition systems.
Instituto de Investigaciones en Electrónica, Control y Procesamiento de Señales
description Capacitive electrodes allow to pick-up biopotentials through a dielectric layer, without using electrolytes. However, this technique is vulnerable to electric-field interference, mainly to common mode voltages produced by the 50 Hz power-line. A fully Capacitive Driven Right Leg (CDRL) circuit is proposed to reduce the patient common mode voltage vCM. The design of this circuit takes into account several factors as electrode impedance, stray coupling capacitances and amplifier transfer function response. All these parameters are addressed to ensure the circuit’s stability in most biopotential acquisition scenarios. Monte Carlo analyses were performed to find the worst conditions, resulting in a maximum CDRL gain between 70 and 80 dB. The CDRL was implemented as an independent block that can be used for different applications such as ECG, EMG or EEG. Several experimental results are presented, showing good quality recordings even using SE amplifiers, an appropriate approach for multichannel acquisition systems.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/127572
url http://sedici.unlp.edu.ar/handle/10915/127572
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1752-6418
info:eu-repo/semantics/altIdentifier/issn/1752-6426
info:eu-repo/semantics/altIdentifier/doi/10.1504/ijbet.2015.068051
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
115-126
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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