LEDLLC谐振驱动电路特性分析与设计  

Design and characteristics analysis of LED resonant driving circuit based on LLC

作　　者：蒋学程[1] 黄宝煅 吕远生 朱翌志 

机构地区：[1]闽江学院物理学与电子信息工程系,福建福州350121

出　　处：《闽江学院学报》2014年第5期32-38,共7页Journal of Minjiang University

基　　金：福建省科技合作计划重点项目(2013H0037);福建省自然科学基金项目(2013J01204);福建教育厅科技项目(JA12262)

摘　　要：为提高LED负载驱动电路的转换效率、可靠性以及恒流性能,提出了一种采用LLC谐振电路和基于LM3404HV的高集成度恒流模块相结合的驱动电路,侧重讨论了LLC谐振电路的ZVS、空载与短路特性以及恒流电路,并根据理论设计了实验样机,通过样机的实验测试,验证了该LED负载驱动电路的可行性与可靠性.To improve the conversion efficiency, reliability and constant electric current performance of LED driving circuit, a new driver circuit combined LLC resonant circuit and a highly integrated LM3404HV module is proposed in this paper. The characteristics of ZVS of LLC resonant circuit and no-load and short-circuit are discussed in detail. And with the help of theory the prototype is designed. The good feasibility and reliability of the proposed LED load driving circuit has been verified by the experimental of the prototype

关 键 词：LED 驱动电源 LLC谐振转换电路 恒流 

分 类 号：TN752[电子电信—电路与系统]