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Article: Self-oscillating dimmable electronic ballast for fluorescent lamps

TitleSelf-oscillating dimmable electronic ballast for fluorescent lamps
Authors
KeywordsElectronic Ballast
Self-Oscillation
Series Resonant Inverter
Issue Date2004
Citation
Ieee Power Electronics Letters, 2004, v. 2 n. 3, p. 87-91 How to Cite?
AbstractThis letter presents a low-cost solution for converting the popularly adopted nondimmable electronic ballast circuit for fluorescent lamps with self-oscillating series resonant inverter into a dimmable one. The dimming function is achieved by increasing the switching frequency of the inverter from the natural frequency of the resonant tank, so that less energy is coupled to the lamp. Control of the switching frequency is based on deriving an adjustable dc current source from the inductor in the resonant tank to control the operating point of the saturable chokes for driving the switches in the inverter. The overall circuit does not require any integrated circuit. A 17-W prototype has been built and tested. Theoretical predictions have been verified with experimental results. The lamp can be dimmed to 10% of the full brightness.
Persistent Identifierhttp://hdl.handle.net/10722/155242
ISSN
2008 SCImago Journal Rankings: 1.577
References

 

DC FieldValueLanguage
dc.contributor.authorChan, SSMen_US
dc.contributor.authorChung, HSHen_US
dc.contributor.authorHui, RSYen_US
dc.date.accessioned2012-08-08T08:32:30Z-
dc.date.available2012-08-08T08:32:30Z-
dc.date.issued2004en_US
dc.identifier.citationIeee Power Electronics Letters, 2004, v. 2 n. 3, p. 87-91en_US
dc.identifier.issn1540-7985en_US
dc.identifier.urihttp://hdl.handle.net/10722/155242-
dc.description.abstractThis letter presents a low-cost solution for converting the popularly adopted nondimmable electronic ballast circuit for fluorescent lamps with self-oscillating series resonant inverter into a dimmable one. The dimming function is achieved by increasing the switching frequency of the inverter from the natural frequency of the resonant tank, so that less energy is coupled to the lamp. Control of the switching frequency is based on deriving an adjustable dc current source from the inductor in the resonant tank to control the operating point of the saturable chokes for driving the switches in the inverter. The overall circuit does not require any integrated circuit. A 17-W prototype has been built and tested. Theoretical predictions have been verified with experimental results. The lamp can be dimmed to 10% of the full brightness.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Power Electronics Lettersen_US
dc.subjectElectronic Ballasten_US
dc.subjectSelf-Oscillationen_US
dc.subjectSeries Resonant Inverteren_US
dc.titleSelf-oscillating dimmable electronic ballast for fluorescent lampsen_US
dc.typeArticleen_US
dc.identifier.emailHui, RSY:ronhui@eee.hku.hken_US
dc.identifier.authorityHui, RSY=rp01510en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/LPEL.2004.838777en_US
dc.identifier.scopuseid_2-s2.0-10244240672en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-10244240672&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2en_US
dc.identifier.issue3en_US
dc.identifier.spage87en_US
dc.identifier.epage91en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChan, SSM=7404255083en_US
dc.identifier.scopusauthoridChung, HSH=7404007467en_US
dc.identifier.scopusauthoridHui, RSY=7202831744en_US

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