照明级白光led的性能与应用（Performance and application of lighting level white LED）.docVIP

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照明级白光led的性能与应用（Performance and application of lighting level white LED）.doc

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照明级白光led的性能与应用（Performance and application of lighting level white LED） The performance and application of lighting grade white LED,.Txt life, is used to operate, not to care about. Love is used to hold, not to test. Love is for love, not for hurt. Money is for enjoyment, not for measure. Lies are used to break, not to decorate. Trust is for precipitation, not for challenge. 2007 03 moonlight source and lighting, 2007 Performance and application of lighting level white LED Yang Guang, University of Science Technology China (Hefei 230029) Based on the rapid development of LED, this paper introduces the performance characteristics and structure of white light emitting diode (LED), which can replace high energy incandescent lamp and even fluorescent lamp Requirements and drive requirements. It has certain reference significance for the actual alternative use. Keywords lighting grade white LED; performance characteristics; drive requirements; Generally considered as a solid LED lighting source with excellent performance, White light LED is the most promising. As a result, many countries in the world Have invested huge sums of money, and actively study high-power, high-efficiency white light LED. At present, there have been commercial lighting grade white LED, the price is also constant Decline. High power, high performance LED. Its luminous efficiency is greater than 40 lm/W. Compared to previous low-power, low efficiency white light LED, due to lighting Class LED has its luminous properties, package structure and service requirements Therefore, it is unique in application. (1) characteristics of white light LED At present, the market can see the single package, single chip, multi chip photo 1 performance of white light LED The power of the bright white LED is W, 3 W, 5 W, 0 W, and 5 W, The so-called lighting grade white LED refers to a single package, with Watts, 20 W and other products. The specific comprehensive electrical parameters are shown in the table. Table 1