资料介绍
Less than six years ago, thermal cooling in the
electronics arena was mainly an issue for high-
performance, high-end applications, such as, military,
aerospace and large-scale industrial and medical
applications. Outside these sectors, thermal cooling
was just a premature notion. In the short span of a few
years, technological and other developments have
made thermal cooling necessary for many applications,
thus requiring the development of a new system
management category: thermal management.
This article discusses an integrated fan speed solution
that provides sophisticated speed control of brushless
DC fans, the most popular type of fan used in electronic
equipment, and helps designers get around problems
like acoustic noise, power consumption, mechanical
wear-out and fault detection. TB063
An Integrated Fan Speed Control Solution Can Lower
System Costs, Reduce Acoustic Noise, Power Consumption
and Enhance System Reliability
However, higher losses due to higher switching
Author: George Paparrizos speeds, significantly offset these savings. An example
Microchip Technology Inc. is the 486 microprocessor, which was drawing 12 to 15
watts. As PCs moved into the first Pentium
generation, the microprocessors started dissipatin
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