摘要
LED是一种高效环保的新型半导体光源,在应急照明领域得到广泛应用,为了实现应急照明功能,必须设计应急转换电路和LED驱动电路。从应急灯的功能和技术要求出发,重点探讨了LED的电光特点和驱动方式,并进行典型LED应急照明灯驱动电路的设计与调试工作。通过试验测量表明,各项技术指标达到了国家标准(GB17945-2000)要求。
LED was a new type of efficient semiconductor light sources with environmental protection,which was widely used in the field of emergency lighting.In order to realize the function of the emergency lighting,it was necessary to design the emergent switch circuit and LED driver circuit.From the function and technical requirements of the emergency lights,it mainly discussed the electro-optical characteristics and the drive mode of the LED.And the typical drive circuit of LED emergency lights was designed and debugged.The test measurements showed that the technical target had reached the requirements of the national standard（GB17945-2000）.
出处
《金华职业技术学院学报》
2010年第6期41-45,共5页
Journal of Jinhua Polytechnic
关键词
LED
应急灯
驱动电路
照明
LED
emergency lights
drive circuit
lighting
