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. 01, 2018
Filed:
Feb. 22, 2017
Applicant:
Silicon Works Co., Ltd., Daejeon-si, KR;
Inventors:
Gyeong Sik Mun, Sejong-si, KR;
Geon Soo Jang, 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 33/083 (2013.01);
Abstract
Disclosed is a control circuit for a lighting apparatus using an LED as a light source. The control circuit controls a driving current of a driving circuit, using a monitoring result for a rectified voltage and a monitoring result for an output voltage of a specific LED group among a plurality of LED groups.