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:
Jan. 07, 2025
Filed:
Mar. 10, 2021
Protean Electric Limited, Farnham, GB;
Chao Ji, Farnham, GB;
PROTEAN ELECTRIC LIMITED, Farnham, GB;
Abstract
A circuit for a multi phase bridge inverter having a plurality of high and low side switches arranged to be coupled, respectively, to first and second power source busbars. The multi phase inverter is arranged to control current flow in coil windings of an electric motor, and a DC link capacitor is coupled between the first and second power source busbars. The circuit comprises first and second impedances coupled in series between the first and second power source busbars and in parallel to the DC link capacitor, and means coupled between the first and second impedances for providing a voltage from the coupling between the first and second impedances to the low side switches upon the occurrence of a first predetermined condition to place the low side switches in a close circuit configuration to allow coil windings of an electric motor to be placed in a short circuit configuration.