摘要
为了控制半导体外观缺陷在线检测系统中的照明光源,介绍了一种以ATmega16单片机为核心,使用恒流方式控制LED照明光源的多路LED光源控制器。叙述了光源控制器的总体设计方案、主要硬件电路、软件流程框图。实验结果表明该光源控制器拥有良好的调节光源亮度以及保持光源亮度的性能。
In order to control the LED light source of semiconductor appearance defect detection system, this paper introduced a multichannel LED light controller based on ATmega16 microcontroller and using constant current mode to control LED light source. This paper described the design scheme, the main hardware circuits and the software＇s flowchart. The experimental results showed that the controller has a good performance in light source brightness adjustment and the brightness maintaining.
出处
《机电工程技术》
2014年第2期40-43,共4页
Mechanical & Electrical Engineering Technology
关键词
单片机
D
A转换
恒流源
光源控制器
microcontroller
D/A conversion
constant current source
light controller
