DocumentCode
1243957
Title
Driving cold cathode fluorescent lamps in parallel
Author
Kim, C.G. ; Lee, Kuan-Chou ; Cho, B.H.
Author_Institution
Interpower Co. Ltd., Seoul, South Korea
Volume
41
Issue
4
fYear
2005
Firstpage
163
Lastpage
164
Abstract
Cold cathode fluorescent lamps (CCFLs) show complex characteristics, which make it difficult to drive them in parallel. Analysis of the lamp current distribution in parallel operation is presented in detail. The current balancing condition, under which the lamp currents are well balanced in the presence of the lamp voltage variation, is derived. The analysis results are verified from experiments with two 720 mm/4 mm CCFLs for 32-inch LCD TVs. Experimental results with eight CCFLs in parallel are also presented.
Keywords
cold-cathode tubes; current distribution; fluorescent lamps; liquid crystal displays; television; 32 inch; 4 mm; 720 mm; LCD TV; cold cathode fluorescent lamps; current balancing condition; lamp current distribution; lamp voltage variation; parallel configuration;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20057641
Filename
1397384
Link To Document