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Article: Single-Phase LED Drivers With Minimal Power Processing, Constant Output Current, Input Power Factor Correction, and Without Electrolytic Capacitor

TitleSingle-Phase LED Drivers With Minimal Power Processing, Constant Output Current, Input Power Factor Correction, and Without Electrolytic Capacitor
Authors
KeywordsLight emitting diodes
Capacitors
Switches
Reactive power
Capacitance
Issue Date2018
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, 2018, v. 33 n. 7, p. 6159-6170 How to Cite?
AbstractHigh-power light-emitting diodes (LEDs) having properties of high luminous efficacy and long life span are becoming a major light source for general illumination. To fully utilize the advantages of LED in lighting applications, the offline power supply that drives the LED should possess the following features: high efficiency, long life span, high input power factor, and (COC). In this paper, high efficiency is achieved by using a minimal power processing (MPP) configuration. Near perfect power factor correction (PFC) is achieved by a simple dual-output disc-ontinuous-conduction-mode (DCM) pulse-width-modulated (PWM) front-end converter. One output of the front-end converter is connected to the LED load using a control switch. The other output is connected directly to a dc storage capacitor cascaded with a downstream DCM PWM converter driving the same LED load to achieve COC driving. The power flow is controlled to achieve the required MPP that can also reduce the storage capacitance by balancing only the ac input ripple power and the dc output power without power recycling. Thus, the design requires no electrolytic capacitor, hence extending the system life span. The achievement of input PFC, MPP, and COC requires design tradeoff among design freedom, ease of control and component count. LED drivers having all these properties are developed, designed, and tested.
Persistent Identifierhttp://hdl.handle.net/10722/278153
ISSN
2023 Impact Factor: 6.6
2023 SCImago Journal Rankings: 3.644
ISI Accession Number ID
Grants

 

DC FieldValueLanguage
dc.contributor.authorWu, H-
dc.contributor.authorWong, SC-
dc.contributor.authorTse, CK-
dc.contributor.authorHui, SYR-
dc.contributor.authorChen, Q-
dc.date.accessioned2019-10-04T08:08:31Z-
dc.date.available2019-10-04T08:08:31Z-
dc.date.issued2018-
dc.identifier.citationIEEE Transactions on Power Electronics, 2018, v. 33 n. 7, p. 6159-6170-
dc.identifier.issn0885-8993-
dc.identifier.urihttp://hdl.handle.net/10722/278153-
dc.description.abstractHigh-power light-emitting diodes (LEDs) having properties of high luminous efficacy and long life span are becoming a major light source for general illumination. To fully utilize the advantages of LED in lighting applications, the offline power supply that drives the LED should possess the following features: high efficiency, long life span, high input power factor, and (COC). In this paper, high efficiency is achieved by using a minimal power processing (MPP) configuration. Near perfect power factor correction (PFC) is achieved by a simple dual-output disc-ontinuous-conduction-mode (DCM) pulse-width-modulated (PWM) front-end converter. One output of the front-end converter is connected to the LED load using a control switch. The other output is connected directly to a dc storage capacitor cascaded with a downstream DCM PWM converter driving the same LED load to achieve COC driving. The power flow is controlled to achieve the required MPP that can also reduce the storage capacitance by balancing only the ac input ripple power and the dc output power without power recycling. Thus, the design requires no electrolytic capacitor, hence extending the system life span. The achievement of input PFC, MPP, and COC requires design tradeoff among design freedom, ease of control and component count. LED drivers having all these properties are developed, designed, and tested.-
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.subjectCapacitors-
dc.subjectSwitches-
dc.subjectReactive power-
dc.subjectCapacitance-
dc.titleSingle-Phase LED Drivers With Minimal Power Processing, Constant Output Current, Input Power Factor Correction, and Without Electrolytic Capacitor-
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.2017.2739125-
dc.identifier.scopuseid_2-s2.0-85028466713-
dc.identifier.hkuros306286-
dc.identifier.volume33-
dc.identifier.issue7-
dc.identifier.spage6159-
dc.identifier.epage6170-
dc.identifier.isiWOS:000428645100055-
dc.publisher.placeUnited States-
dc.relation.projectSustainable Lighting Technology: From Devices to Systems-
dc.identifier.issnl0885-8993-

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