The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 2022
Filed:
Mar. 08, 2019
Applicant:
Zhengzhou Yunhai Information Technology Co., Ltd., Henan, CN;
Inventor:
Guangyi Yu, Henan, CN;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); F04D 27/00 (2006.01);
U.S. Cl.
CPC ...
H05K 7/20209 (2013.01); H05K 7/20136 (2013.01); H05K 7/20836 (2013.01); F04D 27/004 (2013.01);
Abstract
A method and apparatus for controlling fan speed are provided. The method obtains a first PWM value and a second PWM value of the fan based on the temperature of the server component respectively through a PID regulation algorithm and an open-loop control algorithm, and controls the fan speed based on the larger value of the first PWM value and the second PWM value.