摘要
随着社会的发展人们对照明的要求越来越高,照明越来越普遍化、多样化、耗能化,能源缺乏问题也随之成为社会关注的焦点,LED作为一种新型光源,具有高效节能、绿色环保、使用寿命长等优点,代表着未来照明技术的发展方向。本设计是一种基于单片机STC12C5A60S2的LED自适应调光系统,通过光敏传感器感知外界光强,单片机系统依据此信号以PWM控制方式联合大功率LED驱动芯片ULN2003实现LED灯亮度调节的设计,从而实现光线强度的自动调节,以达到节能的目的。
With the development of society people is higher and higher requirements for lighting, lighting is more and more generalization, diversification, energy consumption, The energy problem has become the focus of social attention, LED as a new type of light source, With high efficiency and energy saving, green environmental protection, long life and other advantages, Represents the future development direction of lighting technology. This is a kind of design that LED automatic dimming system based on MCU. Through the photosensitive sensor it can perceive the outside light intensity, MCU system based on this signal with the PWM control mode combined high power LED driver module to realize the design of the LED lamp brightness adjustment. So as to realize automatically adjust the light intensity. In order to achieve the purpose of energy saving.
出处
《电子设计工程》
2015年第12期187-189,共3页
Electronic Design Engineering
基金
郑州市科技厅科技创新团队项目(121PCXTD511)
