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Article: Mitigating energy wastage of light-emitting diodes using discretised multilevel pulsation

TitleMitigating energy wastage of light-emitting diodes using discretised multilevel pulsation
Authors
Issue Date2009
PublisherThe Institution of Engineering and Technology. The Journal's web site is located at http://www.ieedl.org/EL
Citation
Electronics Letters, 2009, v. 45 n. 10, p. 522-524 How to Cite?
AbstractThere is a recent trend and growing popularity of using the technique of light pulsation for achieving the dimming control of light-emitting diodes. However, it is found that such a dimming control technique can result in a significant power loss in terms of luminous efficacy. This contradicts the original motive of energy saving through illumination dimming. Total energy consumed for lighting is an overwhelming 8% of depleting energy resources. A potential loss of 2% or more of these resources could go unnoticed owing to poor handling of dimming technology. It is demonstrated that, driving the LEDs with discretised multilevel pulsation, can achieve a quasi-optimally-efficient state of dimming control with a saving of up to 26.7% of the luminous efficacy. © The Institution of Engineering and Technology 2009.
Persistent Identifierhttp://hdl.handle.net/10722/148897
ISSN
2015 Impact Factor: 0.854
2015 SCImago Journal Rankings: 0.549
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTan, SCen_HK
dc.date.accessioned2012-06-20T06:16:11Z-
dc.date.available2012-06-20T06:16:11Z-
dc.date.issued2009en_HK
dc.identifier.citationElectronics Letters, 2009, v. 45 n. 10, p. 522-524en_HK
dc.identifier.issn0013-5194en_HK
dc.identifier.urihttp://hdl.handle.net/10722/148897-
dc.description.abstractThere is a recent trend and growing popularity of using the technique of light pulsation for achieving the dimming control of light-emitting diodes. However, it is found that such a dimming control technique can result in a significant power loss in terms of luminous efficacy. This contradicts the original motive of energy saving through illumination dimming. Total energy consumed for lighting is an overwhelming 8% of depleting energy resources. A potential loss of 2% or more of these resources could go unnoticed owing to poor handling of dimming technology. It is demonstrated that, driving the LEDs with discretised multilevel pulsation, can achieve a quasi-optimally-efficient state of dimming control with a saving of up to 26.7% of the luminous efficacy. © The Institution of Engineering and Technology 2009.en_HK
dc.languageengen_US
dc.publisherThe Institution of Engineering and Technology. The Journal's web site is located at http://www.ieedl.org/ELen_HK
dc.relation.ispartofElectronics Lettersen_HK
dc.titleMitigating energy wastage of light-emitting diodes using discretised multilevel pulsationen_HK
dc.typeArticleen_HK
dc.identifier.emailTan, SC:sctan@hku.hken_HK
dc.identifier.authorityTan, SC=rp01606en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1049/el.2009.0732en_HK
dc.identifier.scopuseid_2-s2.0-66649093537en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-66649093537&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume45en_HK
dc.identifier.issue10en_HK
dc.identifier.spage522en_HK
dc.identifier.epage524en_HK
dc.identifier.isiWOS:000266264800027-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridTan, SC=26642772000en_HK

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