The Classification of EOLL (End of Lamp Life) on fluorescent lamp and Detection Method

형광 램프 수명 말기에 대한 구분과 검출 방법

  • 조계현 (페어차일드코리아 반도체)
  • Published : 2007.11.02

Abstract

This paper presents that what's the right EOLL(End of Lamp Life) phenomenon on fluorescent lamp and how to detect it according to the lamp status. In normal end of life situation for fluorescent lamps is emitter depletion of the cathodes. So, in most cases, the discharge will extinguish and the lamp will not start. But if the ballast is capable of sustaining the discharge, a new condition arise. Especially, the T4 and T5 lamp which has a short distance from cathode to socket of lamp future must have the EOLL Protection function.

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