摘要
文章介绍了用脉宽调制技术调节LED亮度的方法,并用此技术进行红、绿、蓝三基色LED灯的亮度调节,进而达到LED自由调色的目的。同时利用单片机控制技术,调节LED彩灯的发光周期,实现LED彩灯亮度色彩的变换。
This paper introduces the way to adjust brightness of LED based on pulse width modulation technology, and the technology is applied to adjust brightness of LED-lamp of red, green and blue for the aim of adjusting color of LED freely. Meanwhile, by MCU command technology, the shining cycle of multicol- ored LED-lamp is adjusted to change brightness and colors of multicolored LED-lamp.
出处
《常州工学院学报》
2011年第2期16-19,共4页
Journal of Changzhou Institute of Technology
关键词
脉宽调制
LED
调色
单片机
pulse width modulation
LED
colors adjusting
MCU
