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. 04, 2025
Filed:
Jan. 23, 2023
Fuji Electric Co., Ltd., Kawasaki, JP;
Masaki Hirakata, Hino, JP;
FUJI ELECTRIC CO., LTD., Kanagawa, JP;
Abstract
A motor drive device is provided which includes: a first drive unit configured to drive a plurality of first motor phases; a second drive unit configured to drive a plurality of second motor phases; a common sensor configured to detect a total current flowing through a phase pair obtained by selecting one phase from the plurality of first motor phases and one phase from the plurality of second motor phases; at least one first motor phase sensor and at least one second motor phase sensor configured to detect each current flowing through each phase not included in the phase pair among the plurality of first motor phases and the plurality of second motor phases, respectively; and a drive control unit configured to control drive amounts of the first drive unit and the second drive unit for the plurality of first motor phases and the plurality of second motor phases.