US Patent 7424806 Method for auto-regulating fan speed

Patent 7424806 was granted and assigned to Compal Electronics on September, 2008 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Compal Electronics

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

74248060

Patent Inventor Names

Jenq-Haur Pan0

Chi-Wei Tien0

Date of Patent

September 16, 2008

Patent Application Number

109051870

Date Filed

December 21, 2004

Patent Primary Examiner

‌

Chen Wen Jiang

Patent abstract

The present invention relates to a method for auto-regulating the fan speed. The method includes detecting the temperature of a thermal source. When the temperature of the thermal source exceeds a target value, the fan speed of the fan is regulated according to a relation between the temperature of the thermal source and the fan speed of the fan. Thereafter, the voltage applied to the fan is micro-adjusted through a feedback control mechanism so that the fan speed of the fan reaches a specified speed in steps.

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