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Conference Paper: An IC-less dimmable electronic ballast for fluorescent lamps

TitleAn IC-less dimmable electronic ballast for fluorescent lamps
Authors
KeywordsElectronic ballast
Self-oscillation
Series resonant inverter
Issue Date2004
PublisherIEEE
Citation
Pesc Record - Ieee Annual Power Electronics Specialists Conference, 2004, v. 3, p. 1772-1778 How to Cite?
AbstractThis paper presents a low-cost solution of converting the popularly adopted non-dimmable electronic ballast circuit for fluorescent lamps with self-oscillating series resonant inverter into a dimmable one. 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 resonant inductor in the resonant tank to control the operating point of the saturable transformers for driving the switches in the inverter. The overall implementation does not require any integrated circuit. A 17W prototype has been built and studied. Theoretical predictions have been verified with experimental results. The lamp can be dimmed down to 10% of the full brightness.
Persistent Identifierhttp://hdl.handle.net/10722/136984
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorChan, SSMen_HK
dc.contributor.authorChung, HSHen_HK
dc.contributor.authorHui, SYRen_HK
dc.date.accessioned2011-07-29T02:13:57Z-
dc.date.available2011-07-29T02:13:57Z-
dc.date.issued2004en_HK
dc.identifier.citationPesc Record - Ieee Annual Power Electronics Specialists Conference, 2004, v. 3, p. 1772-1778en_HK
dc.identifier.issn0275-9306en_HK
dc.identifier.urihttp://hdl.handle.net/10722/136984-
dc.description.abstractThis paper presents a low-cost solution of converting the popularly adopted non-dimmable electronic ballast circuit for fluorescent lamps with self-oscillating series resonant inverter into a dimmable one. 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 resonant inductor in the resonant tank to control the operating point of the saturable transformers for driving the switches in the inverter. The overall implementation does not require any integrated circuit. A 17W prototype has been built and studied. Theoretical predictions have been verified with experimental results. The lamp can be dimmed down to 10% of the full brightness.en_HK
dc.languageengen_US
dc.publisherIEEEen_US
dc.relation.ispartofPESC Record - IEEE Annual Power Electronics Specialists Conferenceen_HK
dc.subjectElectronic ballasten_HK
dc.subjectSelf-oscillationen_HK
dc.subjectSeries resonant inverteren_HK
dc.titleAn IC-less dimmable electronic ballast for fluorescent lampsen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailHui, SYR:ronhui@eee.hku.hken_HK
dc.identifier.authorityHui, SYR=rp01510en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/PESC.2004.1355384en_HK
dc.identifier.scopuseid_2-s2.0-8744303762en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-8744303762&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume3en_HK
dc.identifier.spage1772en_HK
dc.identifier.epage1778en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChan, SSM=7404255083en_HK
dc.identifier.scopusauthoridChung, HSH=7404007467en_HK
dc.identifier.scopusauthoridHui, SYR=7202831744en_HK

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