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:
Sep. 15, 2015
Filed:
Jan. 11, 2011
Applicants:
Yasunori Ootsuka, Tokyo, JP;
Takashi Ohsawa, Tokyo, JP;
Inventors:
Yasunori Ootsuka, Tokyo, JP;
Takashi Ohsawa, Tokyo, JP;
Assignee:
Mitsubishi Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0878 (2013.01); H05B 33/089 (2013.01); H05B 33/0815 (2013.01);
Abstract
When an output current is shut off by disconnection, a control unitcauses a DC/DC converterto immediately stop temporarily for suppression of an over-current at the time of restoration, and further causes the DC/DC converterto repeat an temporary stop and an temporary operation by a predetermined number of times or for a predetermined period of time, in order to check whether the shut-off of the output current is transient or continuous, and causes the DC/DC converterto stop continuously if the shut off is continuous, and extinguish an LED light source