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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.:

US 12726144 B1

PDFFull Text
Date of Patent:
Sep. 01, 2026

Filed:

Mar. 08, 2024

Control circuit for a direct current motor

Applicant:

GM Global Technology Operations Llc, Detroit, MI (US);

Inventors:

S.M. Nayeem Hasan, Novi, MI (US);

Nicholas Logan Harvell, Brownstown, MI (US);

Assignee:

GM Global Technology Operations LLC, Detroit, MI (US);

Attorneys:

Honigman LLP

Matthew H. Szalach

Jonathan P. O'Brien

Primary Examiner:

Muhammad S Islam

Int. Cl.
CPC ...
H01H 47/00 (2006.01); B60S 1/08 (2006.01); H02P 3/08 (2006.01); H02P 7/28 (2016.01); H03K 17/041 (2006.01);
U.S. Cl.
CPC ...
H02P 7/28 (2013.01); B60S 1/08 (2013.01); H02P 3/08 (2013.01); H03K 17/04106 (2013.01);
Abstract

A control circuit operatively attached to a motor is provided. The motor includes a first input and a second input and is configured to operate at a first speed and a second speed. The control circuit includes a first speed switch unit configured to connect the battery to the first input, a second speed switch unit configured to connect the battery to the second input, the second speed switch unit configured to block a current generated from a back electromotive force of the motor, and a braking switch unit interposed between the second speed switch unit and the second input, the braking switch unit configured to connect the motor to a ground to stop the motor from operating. The control circuit further including a free-wheeling diode and a discharge diode configured to dissipate and discharge inductive current generated by the motor.

Find Patent Forward Citations

Hasan, S.M.. (2026). Control circuit for a direct current motor (U.S. Patent No. 12726144). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12726144

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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