摘要
充分利用发光二极管(LED)光源的可控性,采用冷暖白光LED和两通道脉冲宽度调制PWM法,从人们关心的照明光源参数出发,依据选用冷白LED光源和暖白LED光源光度色度参数,建立了给定光度量输出时冷暖白光LED光源控制占空比计算的模型,并探讨了基于色温目标控制参数占空比的约束条件.实际设计混色光源参数分析过程和人们选择光源性能指标参数的一致性,为实现分档或连续调光调色提供了直观实用的混色控制模型.
A calculation model of duty cycle which controls the outputs of the selected cold/warm white LEDs were established by using cold/warm white LEDs and dual-channel pulse-width modulation（PWM） based on the controllable performance of LED and by using the color parameters of the selected cold/warm white LED sources to users＇ interest. The constraints of duty cycle were also analyzed based on correlated color temperature（CCT） as an objective parameter. The coherence between mixed color lighting sources quantities in design and the lighting source performance parameters to users＇ selection provides a practical mixed color controlling model in order to realize discrete and continual dimming.
出处
《厦门理工学院学报》
2013年第4期30-35,共6页
Journal of Xiamen University of Technology
基金
厦门理工学院高层次引进人才科技项目(YKJ10008R)
关键词
光电子学
LED
占空比
脉冲宽度调制
混色光源
opto-electronics
LED
controlling duty cycle
pulse width modulation
mixed color lighting sources
