高功率密度LED驱动电源的设计

Research and development of high power density LED drive power supply

我国目前的照明主要以低效率的照明为主,LED由于其具有高效、节能、环保、可靠、长寿命等优点,正逐渐进入照明领域,对缓解目前环境恶化和能源短缺有重要意义。LED的性能与驱动电源性能和使用环境密切相关,需要开发出高效可靠的LED专用驱动电源与之配套。当前LED驱动电源存在功率密度、功率因数和效率较低等问题,因此开展高功率密度LED驱动电源的研究意义深远。

The present lighting is mainly composed of low efficiency of the lighting,due to the advantages of high efficiency,energy saving,environmental friendliness,reliability,long lifetime,LED （Light Emitting Diode） gradually becomes popular in the field of lighting,which will play a pivotal role to ease environmental degradation and energy shortage.LED＇s performance is influenced by the environment and performance of drivers,so a special driver is needed to provide power for LEDs.Currently,the LED power supplies are suffered by several problems,such as low power density,low power factor,low efficiency.It＇ s so significant to research and develop high power factor LED driver.