同步斩波式开关LED照明灯恒流驱动电源设计  

Design of LED lighting system based on self-adapting synchronous chopped wave

作　　者：金永镐[1] 金楠[1] 

机构地区：[1]延边大学工学院,吉林延吉133002

出　　处：《电源技术》2013年第8期1417-1418,1421,共3页Chinese Journal of Power Sources

摘　　要：提出了一种与交流电电源频率同步进行开关工作,LED照明灯驱动用小功率开关电源的设计方法。这种电源结构简单,可在50 Hz/60 Hz频率的110～260 V宽电压范围内工作,有软启动功能,有恒流驱动功能,在输出10～250 V电压下可输出20～100 mA的电流,且稳定可靠,电路简单,具有较高的性能价格比。A method to design a low power switch power supply was proposed, which could work synchronously with alternating current supply frequency and could be applied to LED lighting system. The structure of the power supply is simple, and can work within 110-260 V at 50 Hz/60 Hz. The power supply has the function of soft-start and constant-current driving, the output of the current can be 20-100 mA with the output voltage of 10-250 V. Moreover, the power supply is stable and reliable with simple circuit and a higher cost performance.

关 键 词：交流电 同步 LED灯 宽电压 恒流驱动 

分 类 号：TM910[电气工程—电力电子与电力传动]