一种节能型LED驱动电路的设计  

Design of Energy-Saving LED Drive Circuits

作　　者：黄建华[1] 侯建国[1] 史斌宁[1] 舒俊波[1] 

机构地区：[1]中山大学工学院,广州510275

出　　处：《照明工程学报》2008年第3期71-75,共5页China Illuminating Engineering Journal

摘　　要：LED发光亮度由驱动电流决定,驱动电流稳定与否直接影响LED发光亮度,本文通过设计一种基于单片机数字控制的驱动电路,经试验证明,该电路使用可靠,并给出了具体的试验波形。Light-output of LED is decided by driving current. The stability of driving current has directly influence on light-output. In this paper, a digital controlling circuit in designed based on a micro-chips. It is proved stable by test. The experimental waveform is also given.

关 键 词：白光LED PWM控制 驱动电路 

分 类 号：TM923[电气工程—电力电子与电力传动]