一种大功率LED驱动电路的设计与研究  

Design and Research of High Power LED Driver Circuit

作　　者：姜春玲[1] 封百涛[1] 

机构地区：[1]泰山学院物理与电子工程学院,山东泰安270121

出　　处：《泰山学院学报》2009年第6期54-56,共3页Journal of Taishan University

摘　　要：本文基于PT4115设计了一种可调光的Buck型大功率LED驱动电路,对其外围电路进行了优化设计,并针对负载电流热补偿和降低输出纹波进行了电路的改进.A tunable buck-type high power LED driver circuit is designed in this paper based on the specific chip PT4115.It optimizes peripheric circuit of the design and improves the circuit in allusion to it s load current for thermal compensation and reduction of the output ripple.

关 键 词：LED 驱动电路 PWM调光 

分 类 号：TN312.8[电子电信—物理电子学]