基于AL1676的单绕组LED驱动电源设计

摘要

阐述了单绕组LED驱动器的在LED照明应用中的优势，着重对其单绕组实现方式、功率因数校正( PFC)原理进行了介绍。最后设计了一款基于AL1676的LED驱动电源并对其功率因数、效率等指标进行了测试。测试结果表明该LED驱动器达到了设计目标。%The paper expounded the advantages of single winding LED driver in LED lighting application. In particular, the principle of the method of achieving single winding and power factor correction ( PFC) were introduced. At last, a LED driver was implemented based on the AL1676 The PF, efficiency and other performaces Were tested. The result shows that the LED driver has reached the design target.