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Article: Circuit Theoretic Considerations of LED Driving: Voltage-Source Versus Current-Source Driving

TitleCircuit Theoretic Considerations of LED Driving: Voltage-Source Versus Current-Source Driving
Authors
KeywordsLight emitting diodes
Voltage control
DC-DC power converters
Lighting
Inductors
Issue Date2019
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, 2019, v. 34 n. 5, p. 4689-4702 How to Cite?
AbstractLight-emitting diodes (LEDs) are solid-state devices with specific v-i characteristics. In this paper, we study the basic requirement of the driving circuits and discuss the proper approach to drive LEDs in view of their characteristics. We compare voltage source driving and current source driving, and discuss their relative advantages and constraints. We specifically introduce the use of circuit duality principle for developing new current-source-mode (CSM) drivers that are less known but are theoretically more versatile compared to their conventional voltage-source-mode counterparts. The study highlights the effects of the choice of driving circuits in terms of the number and size of circuit components used, duty cycle variation, sensitivity of control, nonlinearity and control complexity of LED drivers. We propose a CSM single-inductor multiple-output (SIMO) converter, which demonstrates the advantage of having inductorless and easily controlled current-source drivers, and present a comparison of the CSM SIMO converter with the existing SIMO converters. We further illustrate that a high-voltage-step-down ratio can be naturally achieved by the CSM high-voltage-step-down converter without the use of transformers. This paper presents a systematic and comparative exposition of the circuit theory of driving LEDs, with experimental evidence supporting the major conclusions.
Persistent Identifierhttp://hdl.handle.net/10722/278157
ISSN
2023 Impact Factor: 6.6
2023 SCImago Journal Rankings: 3.644
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorDong, Z-
dc.contributor.authorTse, CK-
dc.contributor.authorHui, SYR-
dc.date.accessioned2019-10-04T08:08:35Z-
dc.date.available2019-10-04T08:08:35Z-
dc.date.issued2019-
dc.identifier.citationIEEE Transactions on Power Electronics, 2019, v. 34 n. 5, p. 4689-4702-
dc.identifier.issn0885-8993-
dc.identifier.urihttp://hdl.handle.net/10722/278157-
dc.description.abstractLight-emitting diodes (LEDs) are solid-state devices with specific v-i characteristics. In this paper, we study the basic requirement of the driving circuits and discuss the proper approach to drive LEDs in view of their characteristics. We compare voltage source driving and current source driving, and discuss their relative advantages and constraints. We specifically introduce the use of circuit duality principle for developing new current-source-mode (CSM) drivers that are less known but are theoretically more versatile compared to their conventional voltage-source-mode counterparts. The study highlights the effects of the choice of driving circuits in terms of the number and size of circuit components used, duty cycle variation, sensitivity of control, nonlinearity and control complexity of LED drivers. We propose a CSM single-inductor multiple-output (SIMO) converter, which demonstrates the advantage of having inductorless and easily controlled current-source drivers, and present a comparison of the CSM SIMO converter with the existing SIMO converters. We further illustrate that a high-voltage-step-down ratio can be naturally achieved by the CSM high-voltage-step-down converter without the use of transformers. This paper presents a systematic and comparative exposition of the circuit theory of driving LEDs, with experimental evidence supporting the major conclusions.-
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.rightsIEEE Transactions on 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.subjectVoltage control-
dc.subjectDC-DC power converters-
dc.subjectLighting-
dc.subjectInductors-
dc.titleCircuit Theoretic Considerations of LED Driving: Voltage-Source Versus Current-Source Driving-
dc.typeArticle-
dc.identifier.emailHui, SYR: ronhui@eee.hku.hk-
dc.identifier.authorityHui, SYR=rp01510-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/TPEL.2018.2861914-
dc.identifier.scopuseid_2-s2.0-85050995528-
dc.identifier.hkuros306296-
dc.identifier.volume34-
dc.identifier.issue5-
dc.identifier.spage4689-
dc.identifier.epage4702-
dc.identifier.isiWOS:000464911900059-
dc.publisher.placeUnited States-
dc.identifier.issnl0885-8993-

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