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:
Nov. 14, 2017
Filed:
Mar. 26, 2015
Applicant:
Minebea Co., Ltd., Kitasaku-gun, Nagano, JP;
Inventors:
Takahiro Sakaguchi, Kokubunji, JP;
Shinji Tanaka, Yokohama, JP;
Atsushi Kikuchi, Fujisawa, JP;
Keiji Kobayashi, Yokohama, JP;
Assignee:
Minebea Co., Ltd., Nagano, JP;
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); G05F 1/46 (2006.01); H02M 1/36 (2007.01); H02M 1/32 (2007.01); H02M 7/48 (2007.01); H02H 7/08 (2006.01); H02H 7/10 (2006.01); G06F 1/28 (2006.01);
U.S. Cl.
CPC ...
G05F 1/468 (2013.01); H02H 7/0833 (2013.01); H02H 7/10 (2013.01); H02M 1/32 (2013.01); H02M 1/36 (2013.01); H02M 7/48 (2013.01); G06F 1/28 (2013.01); H02H 9/004 (2013.01);
Abstract
A protection circuit is provided with: a suppression element that is coupled to a power source side of a main circuit and suppresses current flowing into the main circuit that drives a load; and a soft start circuit that is configured to gradually increase voltage of a control terminal of the suppression element when voltage is applied to the soft start circuit from a boosting circuit used for controlling the main circuit.