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:
Sep. 29, 2015
Filed:
Jan. 24, 2014
Samsung Electro-mechanics Co., Ltd., Suwon, Gyunggi-do, KR;
Jung Eui Park, Gyunggi-do, KR;
Jin Soo Lee, Gyunggi-do, KR;
Byoung Woo Ryu, Gyunggi-do, KR;
Seung Kon Kong, Gyunggi-do, KR;
Dae Hoon Han, Gyunggi-do, KR;
Bo Hyun Hwang, Gyunggi-do, KR;
SAMSUNG ELECTRO-MECHANICS CO., LTD., Suwon-Si, Gyeonggi-Do, KR;
Abstract
There is provided a light emitting diode driver capable of improving power efficiency by using a resistor having a low power consumption rating while controlling an LED channel so that it has constant brightness stably. The light emitting diode driver includes: a power supplying unit converting an input voltage into a predetermined driving voltage so as to supply the driving voltage to an LED channel; and a driving unit amplifying a detection voltage detected based on a current from the LED channel by a predetermined gain and controlling the current flowing through the LED channel so that the amplified detection voltage has a level equal to that of a predetermined reference voltage.