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:
Aug. 12, 2014
Filed:
Oct. 23, 2013
Applicant:
Toshiba Lighting & Technology Corporation, Yokosuka, JP;
Inventors:
Hirokazu Otake, Yokosuka, JP;
Toshiyuki Hiraoka, Numazu, JP;
Keiichi Shimizu, Yokohama, JP;
Nobuo Shibano, Miura, JP;
Assignee:
Toshiba Lighting & Technology Corporation, Yokosuka-shi, Kanagawa-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0842 (2013.01); H05B 33/0815 (2013.01); H05B 33/0827 (2013.01);
Abstract
To a constant-current power supply whose output current can be variably set, light emitting modules can be connected in parallel. A control unit recognizes connection information outputted from an information output unit provided in each of the light emitting modules and varies the output current of the constant-current power supply. Drive can be controlled in response to a state of the connected light emitting modules such as the connecting number of light emitting modules.