摘要
Abstract
Energy saving,environmental protection,long life and high efficiency were the advantages of LED lamp.In recent years,with the rapid progress of LED technology,the continues improving of the luminous efficiency of white LED,LED was widely used in the indoor lighting,road lighting and advertising display,etc.But in the photoelectric conversion efficiency index,LED lamp was still relatively low.In view of this situation,the design of LED lamp high constant current drive power was necessary.A LED driver IC NCP5009 was used to design a LED constant current driving power supply,which had high photoelectric conversion efficiency,and could control the current stable output and improve the luminous life of LED tube.关键词
芯片NCP5009/恒流驱动电源/LED灯/光电转换效率Key words
Chip NCP5009/constant current drive supply/LED lamp/photoelectric conversion efficiency分类
信息技术与安全科学
