无电解电容的LED驱动电源研究

Research on LED Driving Power Supply without Electrolytic Capacitors

作为照明光源LED具有高效节能、寿命长、可靠性高、响应快、应用控制灵活、低碳环保等诸多优点,已经成为替代传统照明光源,节约能耗的最佳照明技术。但因为大功率LED的种种技术尚不成熟,其关键问题是大功率LED驱动电源使用寿命与LED不相匹配,再加上白光LED的成本居高不下,导致市场上所售的LED灯具大多价格过高,普通消费者难以接受。所以,大功率LED要想实现普及,对大功率LED驱动电源的研究具有重要意义。文中从理论分析到实现方法两方面详细介绍了LED驱动电源去电解电容的方法。

As a light source,LED has many advantages,such as high efficiency,long life,high reliability,fast response,flexible application control and environment protection,which has become the best choice to replace traditional lighting and energy-saving lighting technology.However,because the high-power LED technology is not mature,LED lamps prices are too high and ordinary consumer are difficult to accept them.The key problem is that high-power LED driver life is not match with LED.Therefore,research on LED driving power supply has great significance.In this paper,the theoretical analysis and implementation method of removal of electrolytic capacitor for LED driving power supply are all described in detail.