TEMPERATURE-SENSITIVE SPEED CONTROL CIRCUIT FOR DC FAN MOTORS.

被引：0
|
作者：
Shakib, J.
机构：
来源：
IBM technical disclosure bulletin | 1983年 / 26卷 / 04期
关键词：
ELECTRIC MOTORS; DC - Speed Control - ELECTRONIC CIRCUITS - Applications;
D O I：
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中图分类号：
学科分类号：
摘要：
A speed control circuit for dc fan motors is described which is particularly useful for the case where the fan is located inside of an electronic equipment cabinet and is used for purposes of cooling the electronic equipment. The circuit varies the speed of the fan to keep a constant temperature inside the equipment enclosure. Consequently, at lower ambient temperatures, the fan will run at lower than the normal rated speed, hence reducing the acoustical noise generated by the fan.
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页码：1832 / 1833
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