Transformerless single phase inverter design for LCD television

Akpinar E., Yilmazlar I.

IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, cilt.53, sa.2, ss.697-703, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 53 Sayı: 2
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1109/tce.2007.381748
  • Dergi Adı: IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.697-703
  • Anahtar Kelimeler: backlight inverter, inverter for CCFL, LCD TV
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

A LCD (Liquid Crystal Display) has the CCFL (cold cathode fluorescent lamp) for backlight illumination. The CCFL is fed at high voltage and high frequency voltage by an inverter in the LCD TVs. The backlight unit consumes almost %40 of input power. The inverter with step-up transformer for this unit is commonly supplied from the switch mode power supply. In this work, a parallel resonance inverter without a step-up transformer is used to eliminate the tran, former power loss. The circuit is analyzed in PSPICE package program and the results are compared with implementation.