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:
Mar. 17, 2026
Filed:
Oct. 06, 2023
GM Global Technology Operations Llc, Detroit, MI (US);
Mazharul Chowdhury, Canton, MI (US);
Muhammad A. Zahid, Troy, MI (US);
Alexander Forsyth, Windsor, CA;
Khorshed Mohammed Alam, Canton, MI (US);
Yilun Luo, Ann Arbor, MI (US);
Junghoon Kim, Springboro, OH (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A rotor power transfer circuit for an electric machine. The rotor power transfer circuit may include a multiple leaf direct current (DC)-to-DC (DC-DC) converter having a plurality of branches connected in parallel to a source of DC power. The branches may include a plurality of switches operable for selectively controlling DC power transfer therethrough according to a plurality of rotor winding excitations modes. The rotor power transfer circuit may include an electrical interface configured for electrically connecting each branch with one of a one or more rotor windings wrapped around a plurality of circumferentially spaced rotor protrusions of the electric machine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile