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:
May. 26, 2020
Filed:
Sep. 26, 2017
Applicant:
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Inventors:
Yuri Ohara, Hitachinaka, JP;
Atsushi Arata, Hitachinaka, JP;
Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD., Ibaraki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/26 (2006.01); G06F 1/28 (2006.01); G06F 1/30 (2006.01); G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
G06F 1/28 (2013.01); G05F 1/00 (2013.01); G06F 1/263 (2013.01); G06F 1/30 (2013.01);
Abstract
In a power supply circuit in which a power supply sequence is variable, a malfunction of a device to which power is supplied caused by a wrong power-on order is prevented. In a power supply circuit according to the present invention, an operation state of a previous voltage regulator is detected, and based on a detection result, an order of activation or stop of respective voltage regulators is controlled.