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:
Jun. 09, 2015
Filed:
Jun. 12, 2012
Jung Eui Park, Gyunggi-do, KR;
BO Hyun Hwang, Gyunggi-do, KR;
Seo Hyung Kim, Gyunggi-do, KR;
Jae Shin Lee, Gyunggi-do, KR;
Dae Hoon Han, Gyunggi-do, KR;
Seung Kon Kong, Gyunggi-do, KR;
Jung Eui Park, Gyunggi-do, KR;
Bo Hyun Hwang, Gyunggi-do, KR;
Seo Hyung Kim, Gyunggi-do, KR;
Jae Shin Lee, Gyunggi-do, KR;
Dae Hoon Han, Gyunggi-do, KR;
Seung Kon Kong, Gyunggi-do, KR;
SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon, Gyunggi-Do, KR;
Abstract
There is provided a light emitting diode driving apparatus capable of uniformly maintaining current balance between light emitting diode channels. The light emitting diode driving apparatus includes: a DC to DC converting unit converting the direct current power into settable driving power; a detecting unit detecting voltage drops generated in each of a plurality of light emitting diode channels each having a plurality of light emitting diodes; a converting unit converting an analog value into a digital value; and a driving unit differentially setting duty cycles of switching signals according to the digital values from the converting unit to drive the plurality of light emitting diode channels.