Invention Grant
- Patent Title: Method and apparatus for controlling fan speed
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Application No.: US16493296Application Date: 2019-03-08
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Publication No.: US11452233B2Publication Date: 2022-09-20
- Inventor: Guangyi Yu
- Applicant: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.
- Applicant Address: CN Henan
- Assignee: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.
- Current Assignee: ZHENGZHOU YUNHAI INFORMATION TECHNOLOGY CO., LTD.
- Current Assignee Address: CN Henan
- Agency: Apex Attorneys at Law, LLP
- Agent Yue (Robert) Xu
- Priority: CN201810917218.1 20180813
- International Application: PCT/CN2019/077394 WO 20190308
- International Announcement: WO2020/034627 WO 20200220
- Main IPC: H05K7/20
- IPC: H05K7/20 ; F04D27/00
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.
Public/Granted literature
- US20210337702A1 METHOD AND APPARATUS FOR CONTROLLING FAN SPEED Public/Granted day:2021-10-28
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