全数字控制可控硅调光LED驱动器设计  

An all-digital control solution for SCR dimming driver of LED

作　　者：张杰[1] 张轶 王晓刚[1] 王佳庆[1] 

机构地区：[1]广州大学机械与电气工程学院,广东广州510006 [2]武汉凯迪电力环保有限公司,湖北武汉430223

出　　处：《电子技术应用》2011年第8期69-71,74,共4页Application of Electronic Technique

基　　金：广东省高校优秀青年创新人才培育项目资助(LYM09109)

摘　　要：根据高亮LED特点,结合可控硅的斩波原理,提出一种运用FLYBACK和DC-DC相结合的两级拓扑结构、采用MCU进行全数字控制的调光驱动方案,解决了应用可控硅调光器对LED进行调光以及驱动器对可控硅调光器的兼容性问题。实验表明,所设计的驱动器能很好地实现调光功能,具有良好的应用前景。By analysing the characteristic of HBLED, the article proposed a solution by using all-digital control driver method simultaneously solved the problem of using SCR dimmer in LED dimming, and the designed driver using the method can be compatible with SCR dimmers in the market. The experiments validate the correctness and superiority of this all-digital control solution, it has a good application prospects.

关 键 词：可控硅调光器 全数字控制 恒流驱动 LED 

分 类 号：TM923.41[电气工程—电力电子与电力传动]