基于XC164的LED自适应照明系统设计  

Design of adaptive LED illumination system based on XC164 controller

作　　者：严会会[1] 景占荣[1] 厉科立[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129

出　　处：《电源技术》2011年第8期979-980,997,共3页Chinese Journal of Power Sources

摘　　要：以XC 164单片机为控制核心,PFC控制器FAN 7527作为复合驱动芯片,提出了一种基于数字PI控制的LED照明系统的PW M稳压恒流控制方案。该方案实现了光衰补偿、节约电能、远程控制功能。同时样机实验表明,该方案可满足LED作为照明的实际需要。Using a XC164 single chip as core device and PFC controller FAN7527 as combination driver,a new type of design method was presented based on digital PI controller for a PWM constant voltage and constant current control of LED lighting systems.The implements realized the attenuation compensation,energy saving and long-range control.The prototype testing shows that this designing can meet the characteristics of LED.

关 键 词：LED 脉宽调制 PI调节 单片机 

分 类 号：TM923.34[电气工程—电力电子与电力传动]