Low-cost self-oscillating electronic ballast for T5 fluorescent lamp integrated with HPF class-DE resonant rectifier

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Publication Details

Author list: Ekkaravarodome C., Jirasereeamornkul K.

Publisher: Hindawi

Publication year: 2011

Start page: 772

End page: 775

Number of pages: 4

ISBN: 9781457704246

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-79961214781&doi=10.1109%2fECTICON.2011.5947954&partnerID=40&md5=33857166ebce860f2421817193b451eb

Languages: English-Great Britain (EN-GB)

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Abstract

This paper presented the low-cost self-oscillating electronic ballast with a broken filament automatic shutdown for T5/28W fluorescent lamp based on high-power-factor Class-DE resonant rectifier, which are very attractive in term of commercial production. The power-factor-correction is achieved by using a bridge rectifier which acts as the Class-DE rectifier with Class-D resonant inverter. By using this topology the conduction angle of the diode can be increased then the low line current harmonic, high-power-factor was obtained. The switching frequency is about 50 kHz. Simulation results verify the theoretical analysis. ฉ 2011 IEEE.

Keywords

Class-DE resonant rectifier, Power-factor-correction, Self-oscillating electronic ballast, T5 fluorescent lamps