LED驱动电源的研究概况

The Study of the LED Driving Power Supply

目前国家大力提倡节能与环保,在照明领域,对于高效节能LED灯源的研究已成为一大热点.然而伴随LED灯具的发展,出现许多问题,其中LED驱动电源的品质对LED产品的发展有着很大的影响.本文阐述了LED驱动电源的基本要素,着重介绍了LED电源常见的拓扑结构及其功率校正电路,对比分析了两种典型的LED驱动电路,并预测了LED驱动电源的发展方向,为其电路设计扩展了思路.

Now our country vigorously promotes energy saving and environmental protection. In the field of lighting, the study of high efficiency and energy saving LED has already become a hot spot. However, with the development of the LED , it appeared a lot of questions. One of them is the quality of the LED driving power supply has great in- fluence on the development of LED products. This paper summarizes the basic elements of LED driving power sup- ply, and introduces the LED power supply common topology structure and PFC. Compared and analyzed two typical LED driver circuit. Forecast the development direction of the LED driver power supply. Expand the circuit design train of thought. 1