正弦波交流LED PWM调光器研究  

Study of Sine Wave AC LED PWM Dimmer

作　　者：葛广军[1] 张晓杰[1] 杨帆[2] 

机构地区：[1]河南城建学院电气系,河南平顶山467036 [2]河南工业大学电气工程学院,河南郑州450001

出　　处：《照明工程学报》2012年第3期56-59,共4页China Illuminating Engineering Journal

基　　金：河南省2010年科技计划攻关项目(编号:102102210533)的资助

摘　　要：分析了正弦波交流LED调光器的工作原理,利用脉宽调制(PWM)技术,设计了一种用于AC LED灯的正弦波PWM调光器。与传统的相控调光器相比,PWM调光器能够输出正弦波电压和电流,降低输入电流中的谐波电流成分;PWM调光器在调光过程中,不放大由输入电压波动而引起的灯光闪烁。实验结果表明,该PWM调光器具有较好的性能,在家用和商业照明中有较广的应用前景。This paper presents a principle of dimmer for AC LED lamps. A Sine Wave AC LED PWM Dimmer was designed with PWM technology. Compared with the conventional phase controlled dimmer, the PWM dimmer can generate sine wave and reduce inputing harmonic current. Moreover, it does not amplify the light flicker during dimming. The experimental result shows that it has good performances. The PWM dimmer can be widely used in the residential and commercial lighting dimmer models.

关 键 词：正弦波 PWM调光器 交流发光二极管 

分 类 号：TM923.34[电气工程—电力电子与电力传动]