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:
Oct. 17, 2023
Filed:
Nov. 18, 2021
Applicant:
Yazaki Corporation, Tokyo, JP;
Inventor:
Masato Sasahara, Susono, JP;
Assignee:
YAZAKI CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02J 9/06 (2006.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H02J 9/061 (2013.01); H02J 7/0048 (2020.01); H02J 7/0068 (2013.01); H02J 7/007182 (2020.01); H02J 2207/20 (2020.01);
Abstract
In a power supply control apparatus, a control unit configured to turn on a first switch and turn off a second switch when a backup power supply is to be charged, and turn off the first switch and turn on the second switch when electric power is to be supplied from the backup power supply to a backup load. The control unit sets an upper limit value of a state of charge of the backup power supply based on an output voltage to the backup load obtained by subtracting, from an open circuit voltage of the backup power supply, a voltage drop from an internal portion of the backup power supply to an output to a backup load side via the second switch.