基于恒流谐振网络的LED驱动电路分析与研究  

Analysis and Research on LED Driver Based on Constant-Current Resonant Network

作　　者：林羽静 阮玉斌[2] 杨秀芝[3] 

机构地区：[1]福州大学海洋学院,福建福州350116 [2]福州大学电气工程与自动化学院,福建福州350116 [3]福州大学物理与信息工程学院,福建福州350116

出　　处：《电器与能效管理技术》2017年第8期8-11,共4页Electrical & Energy Management Technology

基　　金：福建省科技计划资助项目(2015H0017);福州大学SRTP资助项目(22339)

摘　　要：针对LED恒流工作条件,提出一种基于半桥恒流谐振网络的LED驱动电路拓扑。详细介绍了LED恒流驱动电路拓扑的电路结构及工作原理,推导出半桥谐振网络的输出电流与LED负载之间的关系式,并对谐振网络的恒流特性进行了分析。利用Saber仿真软件对所提的LED驱动电路进行了仿真分析,并设计了1台100 W的LED恒流驱动电路原理样机,试验结果验证了所提电路的有效性。In view of thie constant-current worlcing conditions for LED lamp, an LED driver topology based on half-bridge constant-current resonant network was proposed. Its circuit structure and working principle were introduced. The relation between the output current of half-bridge resonant network and LED load wthe constant-current character of the resonant network was analyzed. Saber simulation software was used to analyzethe property of the LED driver . Finally,a 100 W laboratory prototype was built, and the experimental resultsconfirm the validity of the proposed scheme.

关 键 词：恒流 谐振网络 LED 驱动电路 

分 类 号：TM46[电气工程—电器]