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:
Sep. 29, 2026
Filed:
Dec. 20, 2022
Minebea Mitsumi Inc., Nagano, JP;
Yusuke Takada, Hiroshima, JP;
MINEBEA MITSUMI INC., Nagano, JP;
Abstract
A vehicle power supply device includes a backup power supply to which power is supplied from a battery mounted in the vehicle, a boost unit that boosts a voltage of the backup power supply to a predetermined boost voltage, a motor drive unit that is connected to the battery and the boost unit and is capable of driving the electric motor by being supplied with power from one of the battery and the boost unit, a first switching unit that conducts or interrupts power supply between the battery and the motor drive unit, a control unit that controls the first switching unit, and a second switching unit that is provided between the boost unit and the first switching unit and turns off the first switching unit when a voltage output from the boost unit becomes equal to or higher than the predetermined boost voltage.