一种新颖的大功率LED灯驱动电路  

One Novel High Power LED Lamp Driver Circuit

作　　者：张波[1,2] 王恒智[1] 

机构地区：[1]苏州市职业大学电子信息工程系,江苏苏州215104 [2]江苏省光伏发电工程技术研究开发中心,江苏苏州215104

出　　处：《电子与封装》2013年第5期46-48,共3页Electronics & Packaging

基　　金：2012年江苏省大学生实践创新训练计划项目(2012JSSPITP4077)

摘　　要：大功率LED灯有很多优点,而LED驱动电路对LED非常重要,LED驱动和调光是目前研究的热点。针对目前LED驱动电路的不足,设计了一种新颖的LED驱动电路,该电路以单端反激式开关电源为控制的第一级,压控制恒流源为第二级,可同时保证控制精度和效率。实验结果表明该电路效率高、功率大,同时电路还能自适应调光,更加节能可靠。The high-power LED lamp have many advantages, LED driver circuit is very important to LED. LED driver and dimming is eurrent research focus. For current LED driver circuit deficiency, designed a novel LED driver circuit.The single-ended flyback switching power supply is the first level of the circuit, and the voltage controlled current source is the second level. It guarantee both the control accuracy and efficiency at the same time. The experimental results show that the circuit efficiency is high, large power, while the circuit is also adaptive dimming, more energy efficient and reliable.

关 键 词：LED驱动 两级控制 恒流驱动 单端反激式 

分 类 号：TN402[电子电信—微电子学与固体电子学]