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:
Feb. 02, 2021
Filed:
Jan. 08, 2018
Autonetworks Technologies, Ltd., Mie, JP;
Sumitomo Wiring Systems, Ltd., Mie, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Yutaka Kakuno, Mie, JP;
Tsuguo Nishimura, Mie, JP;
Seiji Takahashi, Mie, JP;
Takanori Itou, Mie, JP;
AutoNetworks Technologies, Ltd., Mie, JP;
Sumitomo Wiring Systems, Ltd., Mie, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
An in-vehicle power supply device includes a first voltage conversion unit for performing at least a step-down operation to lower a voltage applied to a first conductive path electrically connected to an in-vehicle power storage unit, and apply the lowered voltage to a second conductive path; a second voltage conversion unit for performing at least the step-down operation to lower a voltage applied to a first conductive path and apply the lowered voltage to a second conductive path, a second voltage conversion unit having a smaller power capacity than the first voltage conversion unit; a driving unit that drives the first voltage conversion unit and the second voltage conversion unit, and a capacitor that is electrically connected to the second conductive path and is charged with a current flowing through the second conductive path.