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.

Date of Patent:
Jan. 05, 2021

Filed:

Feb. 15, 2019
Applicants:

Autonetworks Technologies, Ltd., Mie, JP;

Sumitomo Wiring Systems, Ltd., Mie, JP;

Sumitomo Electric Industries, Ltd., Osaka, JP;

Inventors:

Shunichi Sawano, Mie, JP;

Yuuki Sugisawa, Mie, JP;

Kota Oda, Mie, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 3/24 (2006.01); G05F 5/00 (2006.01); H02M 3/155 (2006.01); H02M 3/156 (2006.01);
U.S. Cl.
CPC ...
G05F 3/24 (2013.01); G05F 5/00 (2013.01); H02M 3/155 (2013.01); H02M 3/156 (2013.01);
Abstract

A power supply control device includes a switch disposed in a first current path of a current flowing from a battery. A first comparator compares a voltage value of a current input end of the switch to which the current is inputted with a voltage threshold. When the voltage value of the current input end is less than the voltage threshold, a drive circuit turns off the switch. The battery supplies, via a second current path, power to a starter that starts an engine of a vehicle. The voltage threshold is less than the voltage value of the current input end of the switch in the case where the battery supplies the power to the starter.


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