摘要
汽车氛围灯是一种具有装饰和创建各种室内灯光场景功能的汽车室内照明系统,基于触摸按键和可以调色的LED汽车氛围灯将会在汽车上得到广泛的应用。本文先介绍了电容式触摸按键和采用脉冲宽度调制(PWM)方式进行三基色LED配色控制的基本原理,然后基于这两种技术,设计实现了这样一种汽车氛围灯,通过操作触摸按键可以进行调光配色并可以记录当前场景,下次启动时自动切换到上次保存的场景,最后对产品的技术特性进行了总结,并对该类产品的技术发展趋势及市场前景进行了展望。
Automotive ambient lighting is a kind of illumination with the function of decoration and build up different atmospheres. This lighting based on touch key and tricolor light mixing will be widely used in automobile. In this paper, The principle of capacitive touch key and tricolor light mixing LED by pulse-width modulation（PWM） method are introduced first. And then Based on this technology, designed a kind of automotive ambient lighting which can be light-mixing by operation of touch key and record the current scene which can be automatically switched to at the start of the next time. Finally, the technical characteristics of the product are summarized, the technical development trend and the market prospect of the product are discussed.
出处
《电子技术（上海）》
2015年第12期1-3,共3页
Electronic Technology
关键词
汽车氛围灯
触摸按键
脉冲宽带调制
三基色调光
占空比
automotive ambient lighting
touch key
pulse-width modulation
tricolor light mixing
duty cycle
