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. 17, 2015
Filed:
Mar. 15, 2013
Samsung Electro-mechanics Co., Ltd., Suwon, Gyunggi-do, KR;
Yun Joong Lee, Gyunggi-do, KR;
Jong Tae Hwang, Gyunggi-do, KR;
Chan Woo Park, Gyunggi-do, KR;
Je Hyeon Yu, Gyunggi-do, KR;
Chang Seok Lee, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Suwon, Gyunggi-Do, KR;
Abstract
There is provided a light emitting diode (LED) driving apparatus configured such that a waveform of current input to an LED follows a sine wave, the LED driving apparatus including, a switching unit switching an LED unit having a plurality of LEDs receiving rectified power and emitting light, a driving control unit controlling the switching of the switching unit according to a voltage level of the rectified power, a current limiting unit limiting current flowing in the LED unit, and an adjusting unit adjusting current limitation of the current limiting unit according to the voltage level of the rectified power.