摘要
针对目前普通日光灯因不能调节光强而造成的能源浪费问题,设计了一种基于单片机的新型节能日光灯系统,该系统主要分为3个部分,首先采集外界光强信息并将数据传至单片机;随后单片机根据输入量的不同调整输出的PWM波;最后日光灯控制电路通过PWM波的控制,调节日光灯两端的电压,控制日光灯输出的光强,使日光灯随外界光强的变化而自动调整照射光强。经过不同外界环境的实验调试,在满足使用者的用光要求的前提下,日光灯工作稳定,功率明显降低,适宜推广使用。
In order to solve the energy-wasting problem which is caused by the ordinary fluorescent lamp because of its constant light intensity, a new kind of energy-saved fluorescent lamp system is designed. This system mainly consists of three parts. Firstly, the system collected the light intensity information of surroundings and sent it to the SCM. Secondly, the SCM produced different PWM waves according to the surrounding information. Finally the system controlled the light intensity of the lamp through adjusting the electric voltage between the lamp, which made the light of lamp changed according to the change of environmental light intensity. In a series of experiments in diverse external environments, the new system works constantly and achieves a much lower power than before, which means it can be applied to a wider area.
出处
《电子设计工程》
2011年第2期119-121,129,共4页
Electronic Design Engineering
关键词
日光灯
单片机
光强
PWM波
fluorescent lamp
SCM
light intensity
PWM wave
