LED路灯驱动电源的设计

Method for Designing Driving Power Supply of LED Street Lamp

阐述分析LED路灯的基本特性,并针对适用于LED路灯调光输出的LLC谐振变换器进行分析。以110 W LED路灯为实例,对LLC谐振变换器的主要谐振腔参数进行优化设计,并进一步对采用的变谐振电感(VRI)的控制策略进行优化设计。最后,基于Psim软件进行样机的仿真实验,验证了提出的优化策略的可行性。

In this paper, the basic characteristics of led street lamps are described and analyzed, and the LLC resonant converter suitable for light modulation and output of led street lamps is analyzed and studied. taking 110 w led street lamps as an example, the main resonant cavity parameters of LLC resonant converter are optimized, and the control strategy of variable resonant inductor（ vri） is optimized. Finally, a simulation experiment is carried out based on psim software to verify the optimization strategy proposed in this paper.