利用FPGA实现高速芯片的冷却风扇控制  

Using FPGA to implement the cooling fans control for high-speed chips

作　　者：周岳斌[1] 

机构地区：[1]湖南理工学院机械与电气工程系,湖南岳阳414000

出　　处：《湖南理工学院学报（自然科学版）》2007年第2期38-41,共4页Journal of Hunan Institute of Science and Technology(Natural Sciences)

摘　　要：风扇是高速芯片常用的冷却手段,它们能大幅度地降低高速芯片的温度,但也会产生大量噪声。根据温度调节风扇速度能明显地降低风扇噪声,但需要首先测量高速芯片的温度。在现场可编程门阵列(FPGA)中设计一个系统管理总线(SMBus)接口,与内含温度测量和自动风扇控制的芯片进行通讯,实现高速芯片的冷却风扇控制。重点介绍了SMBus接口标准的主要内容,详细描述了具体的硬件电路,并给出了FPGA设计中的几点注意事项。Commonly employed to cool high-speed chips, fans can dramatically reduce the temperature of high-speed chips, but they also generate a great deal of noise. Adjusting fan＇s speed according to temperature can reduce the fan noise obviously, but the temperature of the high-speed chip muse be measured in advance. A system management bus（SMBus） interface is designed in FPGA（Field Programmable Gate Array） to communicate with chips which include temperature measurement and automatic fan control, and implement the cooling fans control for high-speed chips. The main content of SMBus interface standard is emphatically introduced, and the hardware circuit is described in detail, some notice items for FPGA design are also given.

关 键 词：现场可编程门阵列 系统管理总线 高速芯片 冷却风扇 

分 类 号：TP271.5[自动化与计算机技术—检测技术与自动化装置]