Title :
A New Current Balancing Methods of CCFL for LCD TV Backlight
Author :
Seunguk Yang ; Soungju Lee ; Hojin Kim ; Haidon Lee ; Hyungsoo Mok ; Choe, Gunn
Author_Institution :
Power R&D Eng., DANAM Syst. Inc.
Abstract :
Cold cathode fluorescent lamps (CCFL) show complex characteristics, which make it difficult to drive them in parallel. In this paper, a multi-lamp driving scheme is proposed to drive multiple lamps for LCD back light to reduce output current unbalance. This propose system is composed of parallel CCFLs, series transformers. The driving system adopts only one backlight inverter to drive multi cold cathode fluorescent lamps (CCFL). Moreover the circuit introduces a multi-lamp driving transformer to reduce lamp-current imbalance
Keywords :
fluorescent lamps; invertors; liquid crystal displays; television; transformers; LCD TV backlight; backlight inverter; cold cathode fluorescent lamps; current balancing methods; lamp-current imbalance reduction; multilamp driving transformer; output current unbalance reduction; Capacitors; Cathodes; Circuits; Computer displays; Fluorescent lamps; Impedance; Inverters; Liquid crystal displays; TV; Transformers;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1711822
