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:
Jan. 03, 2017
Filed:
Dec. 09, 2015
Applicant:
Silicon Works Co., Ltd., Daejeon-si, KR;
Inventors:
Yong Geun Kim, Suwon-si, KR;
Sang Young Lee, Jeonju-si, KR;
Ki Chul An, Daegu-si, KR;
Gyeong Sik Mun, Daejeon-si, KR;
Assignee:
SILICON WORKS CO., LTD., Daejeon-Si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/02 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0884 (2013.01); H05B 33/0815 (2013.01); H05B 33/0848 (2013.01);
Abstract
Disclosed is a control circuit of an LED lighting apparatus having a current control function. The control circuit of the LED lighting apparatus may include: a current control circuit configured to control the LED lighting apparatus divided into a plurality of LED groups, and provide a current path corresponding to sequential light emissions of the LED groups in response to a rectified voltage; and surplus voltage buffer circuits corresponding to two or more LED groups, respectively, and each configured to buffer a surplus voltage.