不知道有没有人发过
一篇英文文章，介绍了为什么进行风扇调速以及如何调速
fan_speed.pdf (109.89 KB)
Why and How to Control Fan Speed for Cooling Electronic Equipment
By Mary Burke [mary.burke@analog.com]
INTRODUCTION
Interest has been growing in integrated circuits for controlling the speed of cooling fans in personal computers and other electronic equipment. Compact electrical fans are cheap and have been used for cooling electronic equipment for more than half a century. However, in recent years, the technology of using these fans has evolved significantly. This article will describe how and why this evolution has taken place and will suggest some useful approaches for the designer. |
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡