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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.:

US 9686833 B1

PDFFull Text
Date of Patent:
Jun. 20, 2017

Filed:

Mar. 18, 2016

Led driving apparatus and lighting apparatus including the same

Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Sang Cheol Bong, Seoul, KR;

Kyoung Tae Han, Hwaseong-si, KR;

Assignee:

SAMSUNG ELECTRONICS CO., LTD., Yeongtong-gu, Suwon-si, Gyeonggi-do, KR;

Attorney:

Muir Patent Law, PLLC

Primary Examiner:

Thai Pham

Int. Cl.
CPC ...
H05B 33/08 (2006.01); H05B 37/02 (2006.01); F21V 9/16 (2006.01); F21V 3/02 (2006.01); H01L 25/16 (2006.01); H01L 25/075 (2006.01); H01L 33/62 (2010.01); H01L 33/32 (2010.01); H01L 33/12 (2010.01); H01L 33/00 (2010.01); H01L 33/06 (2010.01); H01L 33/40 (2010.01); H01L 33/42 (2010.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0845 (2013.01); F21V 3/02 (2013.01); F21V 9/16 (2013.01); H01L 25/0753 (2013.01); H01L 25/167 (2013.01); H01L 33/62 (2013.01); H05B 33/0809 (2013.01); H05B 33/0824 (2013.01); H05B 37/0272 (2013.01); G02B 6/0083 (2013.01); H01L 33/007 (2013.01); H01L 33/06 (2013.01); H01L 33/12 (2013.01); H01L 33/325 (2013.01); H01L 33/405 (2013.01); H01L 33/42 (2013.01);
Abstract

An LED driving apparatus according to an exemplary embodiment of the present inventive concept may include a rectifier circuit rectifying alternating current (AC) power to generate driving power for operating a plurality of LED arrays; a controller integrated circuit (IC) including a plurality of internal switches connected to respective output terminals of the plurality of LED arrays and controlling a path of a current flowing in the plurality of LED arrays by adjusting operations of the plurality of internal switches according to a magnitude of the driving power; and a current controlling circuit connected to the output terminal of at least one of the plurality of LED arrays and controlling a current flowing in the at least one LED array.

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