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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.:

US 12794242 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Nov. 08, 2023

Vehicle power supply device

Applicants:

Autonetworks Technologies, Ltd., Mie, JP;

Sumitomo Wiring Systems, Ltd., Mie, JP;

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Takahiro Okamoto, Osaka, JP;

Hiroki Shimoda, Osaka, JP;

Taiji Yanagida, Osaka, JP;

Assignees:

AUTONETWORKS TECHNOLOGIES, LTD., Mie, JP;

SUMITOMO WIRING SYSTEMS, LTD., Mie, JP;

SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Levi Gannon

Int. Cl.
CPC ...
B60L 9/18 (2006.01); B60L 15/00 (2006.01); B60L 50/40 (2019.01); B60L 50/51 (2019.01); B60L 50/60 (2019.01); B60L 50/64 (2019.01); B60L 53/22 (2019.01); B60L 55/00 (2019.01); B60L 58/20 (2019.01); H02J 7/34 (2006.01); B60L 1/00 (2006.01);
U.S. Cl.
CPC ...
H02J 7/345 (2013.01); B60L 9/18 (2013.01); B60L 15/007 (2013.01); B60L 50/40 (2019.02); B60L 50/51 (2019.02); B60L 50/60 (2019.02); B60L 50/64 (2019.02); B60L 53/22 (2019.02); B60L 55/00 (2019.02); B60L 58/20 (2019.02); B60L 1/00 (2013.01); B60L 2210/14 (2013.01); B60L 2270/20 (2013.01);
Abstract

A vehicle power supply device includes a first relay (e.g., first positive-electrode side relay), and a second relay (e.g., second positive-electrode side relay), and a DC-DC converter. The DC-DC converter is provided between a first conductive path (e.g., first positive-electrode side conductive line), which is an electrical path between the first relay and a first capacitor in a first branch path, and a low-voltage battery, and steps down a voltage inputted from the first conductive path (e.g., first positive-electrode side conductive line) and outputs the voltage to the low-voltage battery The DC-DC converter is provided between a second conductive path (e.g., second positive-electrode side conductive line), which is an electrical path between the second relay and a second capacitor in a second branch path, and the low-voltage battery, and supplies electric power to the second capacitor by performing voltage boosting operation of boosting the voltage inputted from the low-voltage battery.

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Okamoto, Takahiro. (2026). Vehicle power supply device (U.S. Patent No. 12794242). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12794242

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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