摘要
LED作为新一代绿色固体冷光源,对其驱动与调光问题的研究一直是近年来照明界关注的焦点,在节能环保领域具有广阔的发展前景。针对当前办公照明能耗偏高、光源利用率偏低问题,提出基于MSP430单片机控制的LED智能调光系统,即通过传感器进行光敏检测和动静探测,将反馈信号输送给单片机,改变单片机输出的脉冲信号占空比,从而实现PWM调光功能。选用带有调光功能的专用LED驱动芯片XL6003带动负载,并通过实验对该系统的性能进行量化分析,实现LED照明系统在办公区域的智能化和集约化应用,达到节能高效的目的。
LED is a new generation of green solid cold light source. The driving and dimming is a research hotspot in recent years. It has a broad development prospect in the field of energy saving and environmental protection. To solve the problem of the current high energy consumption of office lighting and the low utiliza- tion rate of the light source, the paper proposes LED intelligent dimming system based on single chip micro- computer MSP430. That is to do sensitive detection and movement detection through the sensor, deliver the feedback signal to the microcontroller, change the duty ratio of the output pulse signal which is output by the single chip microcomputer. By doing these to realize the dimming function of PWM. To drive load by selecting the dedicated LED driver chip XL6003 with light modulation function,and through experiments on the system performance analysis. Thus to realize the intelligent and intensive application of LED lighting system in Office Area and to achieve the purpose of energy efficiency.
出处
《灯与照明》
2014年第1期44-47,共4页
Light & Lighting
