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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/127572
Ver los metadatos del registro completo
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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 |
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Universidad Nacional de La Plata |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
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