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Article: Precise Luminous Flux and Color Control of Dimmable Red-Green-Blue Light-Emitting Diode Systems

TitlePrecise Luminous Flux and Color Control of Dimmable Red-Green-Blue Light-Emitting Diode Systems
Authors
KeywordsColor coordinates
Luminous flux
Red–green–blue (RGB) light-emitting diode (LED) system
Single-inductor three-output (SITO) led driver
Issue Date2022
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=63
Citation
IEEE Transactions on Power Electronics, 2022, v. 37 n. 1, p. 588-606 How to Cite?
AbstractA generic red, green, and blue (RGB) LED system encompasses complex interactions of power, heat, light, and color, which pose a major challenge for achieving precise control over luminance and color-mixing in high-quality lighting applications. In this article, new nonlinear empirical models of a practical RGB LED system with closed-loop control are formulated. They enable precise prediction of luminous flux and color coordinates by using the three distinct reference voltages as the control variables for independent current regulation across the RGB LED strings. The proposed empirical models are experimentally verified by using a hardware prototype of a dc–dc single-inductor three-output LED driver with proportional–integral compensators and time-interleaving control scheme. The measured values of luminous flux and color coordinates agree closely with the predicted values from the models.
Persistent Identifierhttp://hdl.handle.net/10722/303944
ISSN
2023 Impact Factor: 6.6
2023 SCImago Journal Rankings: 3.644
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWong, CPG-
dc.contributor.authorLee, ATL-
dc.contributor.authorLi, K-
dc.contributor.authorTan, SC-
dc.contributor.authorHui, SY-
dc.date.accessioned2021-09-23T08:53:00Z-
dc.date.available2021-09-23T08:53:00Z-
dc.date.issued2022-
dc.identifier.citationIEEE Transactions on Power Electronics, 2022, v. 37 n. 1, p. 588-606-
dc.identifier.issn0885-8993-
dc.identifier.urihttp://hdl.handle.net/10722/303944-
dc.description.abstractA generic red, green, and blue (RGB) LED system encompasses complex interactions of power, heat, light, and color, which pose a major challenge for achieving precise control over luminance and color-mixing in high-quality lighting applications. In this article, new nonlinear empirical models of a practical RGB LED system with closed-loop control are formulated. They enable precise prediction of luminous flux and color coordinates by using the three distinct reference voltages as the control variables for independent current regulation across the RGB LED strings. The proposed empirical models are experimentally verified by using a hardware prototype of a dc–dc single-inductor three-output LED driver with proportional–integral compensators and time-interleaving control scheme. The measured values of luminous flux and color coordinates agree closely with the predicted values from the models.-
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=63-
dc.relation.ispartofIEEE Transactions on Power Electronics-
dc.rights©2021 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.subjectColor coordinates-
dc.subjectLuminous flux-
dc.subjectRed–green–blue (RGB) light-emitting diode (LED) system-
dc.subjectSingle-inductor three-output (SITO) led driver-
dc.titlePrecise Luminous Flux and Color Control of Dimmable Red-Green-Blue Light-Emitting Diode Systems-
dc.typeArticle-
dc.identifier.emailLee, ATL: tlalee@eee.hku.hk-
dc.identifier.emailTan, SC: sctan@eee.hku.hk-
dc.identifier.emailHui, SY: ronhui@HKUCC-COM.hku.hk-
dc.identifier.authorityTan, SC=rp01606-
dc.identifier.authorityHui, SY=rp01510-
dc.description.naturepostprint-
dc.identifier.doi10.1109/TPEL.2021.3102260-
dc.identifier.scopuseid_2-s2.0-85112142838-
dc.identifier.hkuros325063-
dc.identifier.volume37-
dc.identifier.issue1-
dc.identifier.spage588-
dc.identifier.epage606-
dc.identifier.isiWOS:000698580400059-
dc.publisher.placeUnited States-

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