LED智能调光系统在办公区域的应用研究

Applied Study of LED Intelligent Dimming System in Offi ce Area

LED驱动与调光问题的研究一直是近年来照明界关注的焦点。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。摘要:

LED drivers and dimmers have long been the focus of research in the lighting industry. This thesis proposes a corresponding solution to the problem of high energy consumption and low light utilization effi ciency in offi ce lighting. That is, the LED intelligent dimming system, controlled by MSP430 single chip. The single chip receives the feedback signal from light sensors or occupancy sensors and changes the duty cycle of the output pulse signal, to implement PWM dimming function. The study employs the LED dedicated driver IC XL6003 for its dimming function. The quantitative analysis about the performance of the system is done through experiment. The system will help realize the intelligent and intensive LED lighting in offi ce areas and achieve the goal of energy saving.