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:
Oct. 18, 2016

Filed:

Oct. 09, 2014
Applicant:

Yazaki Corporation, Minato-ku, Tokyo, JP;

Inventors:

Yoshihide Nakamura, Shizuoka, JP;

Akinori Maruyama, Shizuoka, JP;

Yoshinori Ikuta, Shizuoka, JP;

Keisuke Ueta, Shizuoka, JP;

Assignee:

YAZAKI CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/093 (2006.01); H02H 3/06 (2006.01); H02H 6/00 (2006.01); H02H 3/08 (2006.01);
U.S. Cl.
CPC ...
H02H 3/0935 (2013.01); H02H 3/06 (2013.01); H02H 3/085 (2013.01); H02H 6/00 (2013.01);
Abstract

When a power switch is turned off, a protection device for an electricity supply circuit starts keeping time using a timer and turns on a disconnection flag. Then the protection device turns off the disconnection flag when the timer has counted a predetermined time. When the power switch is turned off, the disconnection flag does not subsequently turn off until the predetermined time has passed. Therefore, it is possible to prevent an excessive temperature increase in the power switch and prevent damage to the power switch.


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