Linear-assisted DC/DC regulator-based current source for LED drivers

© The Institution of Engineering and Technology 2016. A proposal of current source based on a linear-assisted DC/DC converter is presented, in which a linear voltage regulator assists a switching DC/DC converter in order to obtain a compact circuit with advantages of both alternatives; i.e. high eff...

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Detalles Bibliográficos
Autores: Martínez García, Herminio|||0000-0002-7977-2577, Saberkari, Alireza
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/90800
Acceso en línea:https://hdl.handle.net/2117/90800
https://dx.doi.org/10.1049/el.2015.3437
Access Level:acceso abierto
Palabra clave:DC-to-DC converters
Convertidors continu-continu
Àrees temàtiques de la UPC::Enginyeria electrònica
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oai_identifier_str oai:upcommons.upc.edu:2117/90800
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repository_id_str
spelling Linear-assisted DC/DC regulator-based current source for LED driversMartínez García, Herminio|||0000-0002-7977-2577Saberkari, AlirezaDC-to-DC convertersConvertidors continu-continuÀrees temàtiques de la UPC::Enginyeria electrònica© The Institution of Engineering and Technology 2016. A proposal of current source based on a linear-assisted DC/DC converter is presented, in which a linear voltage regulator assists a switching DC/DC converter in order to obtain a compact circuit with advantages of both alternatives; i.e. high efficiency (similar to the switching converter), and low output ripple and fast reaction to the load changes (similar to the linear regulator). To reduce the power dissipation in the linear regulator, it is considered as an assisted circuit for providing just a little fraction of the load current. Furthermore, this stage provides the required clock signal for the switching counterpart, resulting in reduction of the complexity in the design of the control scheme for the switching converter and a compact topology, especially for onchip practical implementations, since no output capacitors are required. This last advantage provides the possibility of obtaining good-performance current-source drivers for LED technology in lighting applications. The implementation and results indicate that the proposed linear-assisted DC/DC regulator-based current source can achieve a notably compacting and higher performance, while consuming less power in comparison to linear alternatives.Institution of Electrical Engineers20162016-03-1720162016-10-17journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/90800https://dx.doi.org/10.1049/el.2015.3437reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/908002026-05-27T15:37:01Z
dc.title.none.fl_str_mv Linear-assisted DC/DC regulator-based current source for LED drivers
title Linear-assisted DC/DC regulator-based current source for LED drivers
spellingShingle Linear-assisted DC/DC regulator-based current source for LED drivers
Martínez García, Herminio|||0000-0002-7977-2577
DC-to-DC converters
Convertidors continu-continu
Àrees temàtiques de la UPC::Enginyeria electrònica
title_short Linear-assisted DC/DC regulator-based current source for LED drivers
title_full Linear-assisted DC/DC regulator-based current source for LED drivers
title_fullStr Linear-assisted DC/DC regulator-based current source for LED drivers
title_full_unstemmed Linear-assisted DC/DC regulator-based current source for LED drivers
title_sort Linear-assisted DC/DC regulator-based current source for LED drivers
dc.creator.none.fl_str_mv Martínez García, Herminio|||0000-0002-7977-2577
Saberkari, Alireza
author Martínez García, Herminio|||0000-0002-7977-2577
author_facet Martínez García, Herminio|||0000-0002-7977-2577
Saberkari, Alireza
author_role author
author2 Saberkari, Alireza
author2_role author
dc.subject.none.fl_str_mv DC-to-DC converters
Convertidors continu-continu
Àrees temàtiques de la UPC::Enginyeria electrònica
topic DC-to-DC converters
Convertidors continu-continu
Àrees temàtiques de la UPC::Enginyeria electrònica
description © The Institution of Engineering and Technology 2016. A proposal of current source based on a linear-assisted DC/DC converter is presented, in which a linear voltage regulator assists a switching DC/DC converter in order to obtain a compact circuit with advantages of both alternatives; i.e. high efficiency (similar to the switching converter), and low output ripple and fast reaction to the load changes (similar to the linear regulator). To reduce the power dissipation in the linear regulator, it is considered as an assisted circuit for providing just a little fraction of the load current. Furthermore, this stage provides the required clock signal for the switching counterpart, resulting in reduction of the complexity in the design of the control scheme for the switching converter and a compact topology, especially for onchip practical implementations, since no output capacitors are required. This last advantage provides the possibility of obtaining good-performance current-source drivers for LED technology in lighting applications. The implementation and results indicate that the proposed linear-assisted DC/DC regulator-based current source can achieve a notably compacting and higher performance, while consuming less power in comparison to linear alternatives.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-03-17
2016
2016-10-17
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/90800
https://dx.doi.org/10.1049/el.2015.3437
url https://hdl.handle.net/2117/90800
https://dx.doi.org/10.1049/el.2015.3437
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institution of Electrical Engineers
publisher.none.fl_str_mv Institution of Electrical Engineers
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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