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Article: New Dynamic Photo-Electro-Thermal Modeling of Light-Emitting Diodes With Phosphor Coating as Light Converter Part I: Theory, Analysis, and Modeling

TitleNew Dynamic Photo-Electro-Thermal Modeling of Light-Emitting Diodes With Phosphor Coating as Light Converter Part I: Theory, Analysis, and Modeling
Authors
KeywordsLight emitting diodes
Phosphors
Coatings
Mathematical model
Heating systems
Issue Date2020
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6245517
Citation
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, v. 8 n. 1, p. 771-779 How to Cite?
AbstractPhosphor-coated light-emitting diode (PC-LED) is the dominant LED technology for public lighting. This paper presents a comprehensive theory for analyzing and modeling phosphor coating (PC) in white LEDs as a dynamic light converter. The new PC-LED model not only obeys the traditional diode equation but also includes the energy storage and transient effects of the PC. Major control variables include energy storage in and the luminous flux from the PC. This new model enables the dynamic variations of luminous flux and energy storage and power loss in PC to be accurately predicted. Part I of this paper provides the details of the theory and analysis leading to the new PC-LED model under the framework of the photo-electro-thermal theory. The details of the model parameter determination, model setup, and experimental verification are included in Part II. The model offers the important power loss equation of the PC which highlights the factors affecting the heat loss and the coating's blackening effects. This equation can be used by engineers to design LED drivers in order to reduce the coating temperature and the blackening effects and to prolong LED lifetime. © 2013 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/280358
ISSN
2023 Impact Factor: 4.6
2023 SCImago Journal Rankings: 2.985
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorHui, SY-
dc.contributor.authorLee, ATL-
dc.contributor.authorTan, S-C-
dc.date.accessioned2020-02-07T07:39:57Z-
dc.date.available2020-02-07T07:39:57Z-
dc.date.issued2020-
dc.identifier.citationIEEE Journal of Emerging and Selected Topics in Power Electronics, 2020, v. 8 n. 1, p. 771-779-
dc.identifier.issn2168-6777-
dc.identifier.urihttp://hdl.handle.net/10722/280358-
dc.description.abstractPhosphor-coated light-emitting diode (PC-LED) is the dominant LED technology for public lighting. This paper presents a comprehensive theory for analyzing and modeling phosphor coating (PC) in white LEDs as a dynamic light converter. The new PC-LED model not only obeys the traditional diode equation but also includes the energy storage and transient effects of the PC. Major control variables include energy storage in and the luminous flux from the PC. This new model enables the dynamic variations of luminous flux and energy storage and power loss in PC to be accurately predicted. Part I of this paper provides the details of the theory and analysis leading to the new PC-LED model under the framework of the photo-electro-thermal theory. The details of the model parameter determination, model setup, and experimental verification are included in Part II. The model offers the important power loss equation of the PC which highlights the factors affecting the heat loss and the coating's blackening effects. This equation can be used by engineers to design LED drivers in order to reduce the coating temperature and the blackening effects and to prolong LED lifetime. © 2013 IEEE.-
dc.languageeng-
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6245517-
dc.relation.ispartofIEEE Journal of Emerging and Selected Topics in Power Electronics-
dc.rightsIEEE Journal of Emerging and Selected Topics in Power Electronics. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©20xx 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.subjectLight emitting diodes-
dc.subjectPhosphors-
dc.subjectCoatings-
dc.subjectMathematical model-
dc.subjectHeating systems-
dc.titleNew Dynamic Photo-Electro-Thermal Modeling of Light-Emitting Diodes With Phosphor Coating as Light Converter Part I: Theory, Analysis, and Modeling-
dc.typeArticle-
dc.identifier.emailHui, SY: ronhui@eee.hku.hk-
dc.identifier.emailLee, ATL: tlalee@hku.hk-
dc.identifier.emailTan, S-C: sctan@eee.hku.hk-
dc.identifier.authorityHui, SY=rp01510-
dc.identifier.authorityTan, S-C=rp01606-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/JESTPE.2018.2889118-
dc.identifier.scopuseid_2-s2.0-85059041358-
dc.identifier.hkuros309116-
dc.identifier.volume8-
dc.identifier.issue1-
dc.identifier.spage771-
dc.identifier.epage779-
dc.identifier.isiWOS:000512547100064-
dc.publisher.placeUnited States-
dc.identifier.issnl2168-6777-

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