Adjustment-Free Fan Controller For Under $1

No frills here—just inexpensive functionality. This circuit activates a cooling fan when the temperature of a target high-power-dissipation device, such as a processor chip, exceeds a predetermined limit. The key element in the design is the Epcos PTC Temperature Limit Sensor (see the datasheet at www.epcos.com/inf/55/db/ptc_03/01900191.pdf)...

2009-11-20 10:00:04 | This article is from electronicdesign.com

Tags: adjustmentfree   fan   controller   for   under   $1  

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