Dimmable electronic ballasts by variable power density modulation technique

BÖREKCİ S., Kesler S.

INTERNATIONAL JOURNAL OF ELECTRONICS, cilt.101, sa.11, ss.1570-1579, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 101 Sayı: 11
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/00207217.2014.888596
  • Dergi Adı: INTERNATIONAL JOURNAL OF ELECTRONICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1570-1579
  • Anahtar Kelimeler: dimming, magnetically dimming, electronic ballast, pulse density modulation, variable inductor, DIMMING CONTROL, INDUCTOR
  • Akdeniz Üniversitesi Adresli: Evet

Özet

Dimming can be accomplished commonly by switching frequency and pulse density modulation techniques and a variable inductor. In this study, a variable power density modulation (VPDM) control technique is proposed for dimming applications. A fluorescent lamp is operated in several states to meet the desired lamp power in a modulation period. The proposed technique has the same advantages of magnetic dimming topologies have. In addition, a unique and flexible control technique can be achieved. A prototype dimmable electronic ballast is built and experiments related to it have been conducted. As a result, a 36WT8 fluorescent lamp can be driven for a desired lamp power from several alternatives without modulating the switching frequency.