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.

Date of Patent:
Feb. 21, 2023

Filed:

Jul. 10, 2020
Applicant:

Dell Products, L.p., Round Rock, TX (US);

Inventors:

Hui Chen, Shanghai, CN;

Xu Chen, Shanghai, CN;

Yonghe Li, Shanghai, CN;

Assignee:

Dell Products, L.P., Round Rock, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); F04D 27/00 (2006.01); G05B 15/02 (2006.01); G06F 1/20 (2006.01); F04D 25/08 (2006.01); F04D 25/16 (2006.01);
U.S. Cl.
CPC ...
F04D 27/001 (2013.01); F04D 25/08 (2013.01); F04D 25/166 (2013.01); G05B 15/02 (2013.01); G06F 1/20 (2013.01); G06F 1/206 (2013.01); H05K 7/20836 (2013.01); F05B 2260/80 (2013.01);
Abstract

A system of fans ventilates heated air from within an IHS (Information Handling System), such as a rack-mounted server, when operated during normal conditions at a rated fan speed. A controller detects a failure of a fan of this fan system and identifies the functioning fans of the system. One or more of the functioning fans are selected for boosting by operation of a fan failure compensation circuit that has been configured for delivery of additional power to the selected boost fans. The fan failure compensation circuit delivers an output voltage that boost the airflow output of the system to compensate for the failed fan. By increasing the output voltage by approximately twenty percent, the boosted fans operate at approximately fifteen percent above rated speeds, which has been demonstrated to compensate for a failed fan while avoiding further failures during the expected lifespan of the fan system.


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