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:
May. 21, 2024

Filed:

Jan. 21, 2022
Applicant:

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

Inventors:

Chi-Chang Fu, Taipei, TW;

Feng Cheng Su, Taoyuan, TW;

Chen Chi Hsieh, Taipei, TW;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/20 (2006.01); H03F 3/16 (2006.01); H05K 7/20 (2006.01);
U.S. Cl.
CPC ...
G06F 1/20 (2013.01); H03F 3/16 (2013.01); H05K 7/20172 (2013.01); H05K 7/20209 (2013.01);
Abstract

In one or more embodiments, a fan circuit may be configured with an input of a first amplifier coupled to a revolution indicator associated with a fan; an output of the first amplifier coupled to an input of a second amplifier; and a power supply input of the second amplifier coupled to a first contact of a first connector. In one or more embodiments, the first contact of the first connector may be coupled to a first contact of a second connector to drive a resistive load coupled to the first contact of the second connector; a second contact of the first connector may be coupled to a second contact of the second connector to provide a reference voltage to the second amplifier; and the second amplifier may provide amplified signals to the first contact of the first connector based at least on signals received from the revolution indicator.


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