Single-stage electronic ballast with class D and class e rectifiers as line-current shaper

Conference proceedings article

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Publication Details

Author list: Jirasereeamornkul K.

Publisher: Hindawi

Publication year: 2008

Start page: 768

End page: 771

Number of pages: 4

ISBN: 9784907764296

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-56749160834&doi=10.1109%2fSICE.2008.4654759&partnerID=40&md5=d2121dd88a640bc77ad10d316c7598b6

Languages: English-Great Britain (EN-GB)

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Abstract

New single-stage high-power-factor electronic ballast is proposed. Class D and Class E rectifiers are inserted between the bridge rectifier and the bulk filter capacitor to increase the conduction angle of the bridge-rectifier diodes for reducing line current harmonics. The Class D rectifier connected in parallel with the fluorescent lamp. The Class E rectifier is driven by a high-frequency near sinusoidal current source. A prototype for a 32-W fluorescent lamp was built and tested. At full power, the THDi was 23.5%, the power factor was 0.97 and the efficiency was 90.9 %. The lamp-current crest factor was about 1.53. ฉ 2008 SICE.

Keywords

Class D rectifier, Class D resonant inverter, Class E rectifier, Electronic ballasts