公开(公告)号：US09370063B2

公开(公告)日：2016-06-14

申请号：US14689699

申请日：2015-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Cheol Bong ,  Kyu Cheol Kang ,  Yu Kyung Kim ,  Kyoung Tae Han

IPC: H05B33/08 ,  H05B39/06

CPC classification number: H05B33/0815 ,  H01L25/0753 ,  H01L33/54 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/49107 ,  H01L2224/73265 ,  H01L2224/8592 ,  H01L2924/181 ,  H05B33/0812 ,  H05B33/083 ,  H05B33/0845 ,  H05B39/06 ,  Y02B20/345 ,  H01L2924/00012

Abstract: A light emitting diode (LED) driving device is provided. The LED driving device includes a rectifier configured to rectify alternating current (AC) power to generate rectified power; an AC driver configured to control operations of a plurality of LED groups so that the plurality of LED groups receive the rectified power generated by the rectifier; and a light amount controller configured to reduce an amount of current applied to the plurality of LED groups when a peak value of the rectified power is increased, and increase the amount of current applied to the plurality of LED groups when the peak value of the rectified power is reduced.

Abstract translation: 提供了一种发光二极管（LED）驱动装置。 LED驱动装置包括整流器，被配置为对交流（AC）电力进行整流以产生整流功率; AC驱动器，被配置为控制多个LED组的操作，使得所述多个LED组接收由所述整流器产生的整流功率; 以及光量控制器，被配置为当整流功率的峰值增加时减少施加到所述多个LED组的电流量，并且当所述整流后的峰值被增加时，增加施加到所述多个LED组的电流量 功率降低。