Browse > Article

Design of Inverter for Driving the Multi-lamp using an Piezoelectric Transformers  

Cho Sung-Koo (전남대 대학원 전기공학과)
Lim Young-Cheol (전남대 전기공학과)
Yang Seung-Hak (호남대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.10, no.2, 2005 , pp. 130-137 More about this Journal
Abstract
LCD needs a backlight that is a light source as a photodetector that has a light modulation function and CCFL is used usually. Inverter that composes using existent winding transformer operates multi lamps, however, this efficiency falls by losses of core or winding and volume or weight increases or there is danger of fire by overheating. In order to solve these problems, a multi lamp driving Inverter using PT is composed according to the design guideline in this paper. We conformed whether the multi lamp drive method using EEFL that a current burden is less in applicable to piezoelectric inverter, and used the method that connect two piezoelectric transformers by parallel to an inverter.
Keywords
CCFL; EEFL; Piezoelectric Transformer; Full-Bridge; Multi-Lamp;
Citations & Related Records
연도 인용수 순위
  • Reference
1 배상진, 여운동, 김재우, '백라이트' 심층정보분석 보고서 한국과학기술정보연구원, 2002, pp. 1-38
2 Mu-Shen Lin, Wen-Jung Ho, Fu-Yuan Shih, Dan Y. Chen and Yan-Pei Wu : 'A Cold-Cathode Fluorescent Lamp Driver Circuit with Synchronous Primary-Side Dimming Control', IEEE TRANS. ON Industrial Electronics. Vol. 45. No.2. pp. 249-255, April 1998   DOI   ScienceOn
3 H. L. Chang, L. Ying, J. P. Pai, 'Digital-Dimming Controller with Curren Spikes Elimination Technique for LCD Backlight Electronic Ballast', IEEE APEC 2004, pp. 153-158
4 J. H. Han, Y. C. Lim, S. H. Yang, G. H. Kweon, 'Design of the backlight inverter for multi-lamp driving', ICPE 2001, pp. 80-83
5 Y.Takeda, M.Takagi, Y.Watanabe, M.Amano, H.Nakano, 'High Reliability External Electrode Mercury Fluorescent Lamp for a LCD TV's Backlight' SID 2002 DIGEST. pp. 364-349
6 권기현, 조성구, 임영철, 양승학, 윤석진, '압전 변압기 구동을 위한 인버터 회로 설계' 전력전자 하계학술대회 논문집, 2003, pp. 616-620
7 G. H Kweon, Y. C. Lim, S. H. Yang. 'An analysis of the backlight inverter by topologies' IEEE, ISIE-2001, pp. 896-900
8 조성구, 임영철, 양승학, '압전 변압기를 기반으로 한 LCD 구동 인버터 설계' 전력전자 추계학술대회 논문집, 2003, pp. 197-201
9 35th ICAT Smart Actuator Symposium : 'Conference Note'. April 18-19, 2002
10 Chih yi Lin, 'Design and Analysis of Piezoelelctric Transformer Converters', Academic Press, 1997