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Article: A dimmable light-emitting diode (LED) driver with mag-amp postregulators for multistring applications

TitleA dimmable light-emitting diode (LED) driver with mag-amp postregulators for multistring applications
Authors
Chen, WHui, SYR
KeywordsCurrent Sharing
Light-Emitting Diode (LED)
Magnetic Amplifier
Issue Date2011
Citation
IEEE Transactions on Power Electronics, 2011, v. 26 n. 6, p. 1714-1722 How to Cite?
DOI: http://dx.doi.org/10.1109/TPEL.2010.2082565
AbstractCurrent imbalance should be avoided when multiple LED strings are connected in parallel. In this paper, a dimmable LED driver with magnetic-amplifier postregulators for multistring applications is presented. Powered by a common master source, parallel LED strings are individually regulated by their corresponding adaptive slave sources for current balancing in this proposal. Without linear current regulators, the proposed driver offers relatively high efficiency. Its structure is simpler than multiconverter structures for red, blue, and green LED applications, and is particularly suitable for LEDs with wide parameter variations. The performance of the proposed driver is experimentally verified by a 16.5-W prototype with a load of three 5.5-W LED strings. © 2006 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155639
ISSN
0885-8993
2023 Impact Factor: 6.6
2023 SCImago Journal Rankings: 3.644
ISI Accession Number ID
WOS:000293750400013
Funding AgencyGrant Number
Centre for Power Electronics, City University of Hong Kong (CityU)
CityU
Funding Information:

The authors are grateful to the Centre for Power Electronics, City University of Hong Kong (CityU), for its support for this project. The funding support of CityU for the patent application is also acknowledged.

References
References in Scopus

 

DC FieldValueLanguage
dc.contributor.authorChen, Wen_US
dc.contributor.authorHui, SYRen_US
dc.date.accessioned2012-08-08T08:34:36Z-
dc.date.available2012-08-08T08:34:36Z-
dc.date.issued2011en_US
dc.identifier.citationIEEE Transactions on Power Electronics, 2011, v. 26 n. 6, p. 1714-1722en_US
dc.identifier.issn0885-8993en_US
dc.identifier.urihttp://hdl.handle.net/10722/155639-
dc.description.abstractCurrent imbalance should be avoided when multiple LED strings are connected in parallel. In this paper, a dimmable LED driver with magnetic-amplifier postregulators for multistring applications is presented. Powered by a common master source, parallel LED strings are individually regulated by their corresponding adaptive slave sources for current balancing in this proposal. Without linear current regulators, the proposed driver offers relatively high efficiency. Its structure is simpler than multiconverter structures for red, blue, and green LED applications, and is particularly suitable for LEDs with wide parameter variations. The performance of the proposed driver is experimentally verified by a 16.5-W prototype with a load of three 5.5-W LED strings. © 2006 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Transactions on Power Electronicsen_US
dc.rights©2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.-
dc.subjectCurrent Sharingen_US
dc.subjectLight-Emitting Diode (LED)en_US
dc.subjectMagnetic Amplifieren_US
dc.titleA dimmable light-emitting diode (LED) driver with mag-amp postregulators for multistring applicationsen_US
dc.typeArticleen_US
dc.identifier.emailHui, SYR:ronhui@eee.hku.hken_US
dc.identifier.authorityHui, SYR=rp01510en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1109/TPEL.2010.2082565en_US
dc.identifier.scopuseid_2-s2.0-79960916941en_US
dc.identifier.hkuros208775-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79960916941&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume26en_US
dc.identifier.issue6en_US
dc.identifier.spage1714en_US
dc.identifier.epage1722en_US
dc.identifier.isiWOS:000293750400013-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChen, W=10045132700en_US
dc.identifier.scopusauthoridHui, SYR=7202831744en_US
dc.identifier.issnl0885-8993-

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