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A Study on the CCFL Parallel Driving Circuit for the large LCD TV  

Jang, Young-Su (국민대 전자공학과)
Yoon, Seok (국민대 전자공학과)
Kweon, Gie-Hyoun (삼성전기(주) P&M 사업부)
Han, Sang-Kyoo (국민대 전자정보통신공학부)
Hong, Sung-Soo (국민대 전자정보통신공학부)
Sakong, Suk-Chin (국민대 전자정보통신공학부)
Roh, Chung-Wook (국민대 전자정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.11, no.5, 2006 , pp. 454-462 More about this Journal
Abstract
To enhance the competitive edge of the material cost, various techniques lowering the material cost of inverter to drive Cold Cathode Fluorescent Lamp (CCFL) have been developed. In this paper, the theoretical analysis has been done for the existing techniques such as Jin Balance and O2Micro technique. Especially, How to design the value of magnetizing inductance to meet the specification of the lamp current tolerance between lamps has been disclosed. Based on this result, two kinds of hybrid type balancing techniques have been proposed and analyzed mathematically, Also, the accuracy of the proposed techniques has been verified through Pspice simulation.
Keywords
inverter; CCFL parallel driving circuit;
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  • Reference
1 'Microsemi Integrated Products' Microsemi Corporation Proprietary & Confidential Information
2 Kenneth L. Kaiser, 'Electromagnetic Compatibility Handbook (II)' pp17-8-17-10
3 Sheng Tai Lee, 'Circuit structure for driving a plurality of Cold Cathode Fluorescent Lamps' U.S. Patent 6 781 325 B2, Aug. 24, 2004