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:
Mar. 31, 2015
Filed:
Sep. 14, 2012
Jong Tae Hwang, Gyunggi-do, KR;
Deuk Hee Park, Gyunggi-do, KR;
Sang Hyun Cha, Gyunggi-do, KR;
Chang Seok Lee, Gyunggi-do, KR;
Yun Joong Lee, Gyunggi-do, KR;
Jong Tae Hwang, Gyunggi-do, KR;
Deuk Hee Park, Gyunggi-do, KR;
Sang Hyun Cha, Gyunggi-do, KR;
Chang Seok Lee, Gyunggi-do, KR;
Yun Joong Lee, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon-Si, KR;
Abstract
There is provided a light emitting diode driving apparatus capable of supplying a constant average current to a light emitting diode by generating a reference voltage used for driving the light emitting diode according to input power and a switching signal switching a path of a current supplied to the light emitting diode. The light emitting diode driving apparatus includes: a reference voltage generating unit generating a reference voltage set based on input power and a switching signal for supplying driving power to a light emitting diode; and a driving unit supplying the driving power to the light emitting diode according to the reference voltage.