功率开关管及LED驱动芯片的散热器设计  

Heat Sink Design of Power Switch and LED Driver IC

作　　者：沙占友 马洪涛[1] 

机构地区：[1]河北科技大学,河北石家庄050054

出　　处：《电源技术应用》2012年第6期60-68,共9页Power Supply Technologles and Applications

摘　　要：功率开关管(简称MOSFET)是开关电源的核心器件,这里讲的MOSFET可以是分立的,也可以集成在LED驱动芯片之中首先阐述分立式MOSFET散热器的设计方法、注意事项及设计实例;然后介绍通过计算平均功耗来完成单片LED驱动电源散热器设计的方法。Power switch （MOSFET） is the core device of switching power supply, mentioned here can be discrete MOSFET, also can be integrated inner the LED driver chip. The design of discrete MOSFET heat sink approach, considerations and examples is expounded first; then introduced by calculating the average power consumption to finish single-chip LED driver power supply heat sink design methods, and given design examples.

关 键 词：功率开关管 LED驱动电源 散热器 平均功耗 

分 类 号：TN86[电子电信—信息与通信工程]