公开(公告)号：US09549442B1

公开(公告)日：2017-01-17

申请号：US15086450

申请日：2016-03-31

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Cheol Bong

IPC: H05B33/08 ,  F21V23/00 ,  F21K99/00 ,  H05B37/02 ,  H01L25/16 ,  H01L25/075 ,  H01L33/62 ,  H01L33/24 ,  H01L33/06 ,  H01L33/50 ,  H01L33/12 ,  H01L33/32 ,  H01L33/00 ,  H01L33/40 ,  H01L33/42

CPC classification number: F21K9/20 ,  F21K9/238 ,  F21K9/278 ,  F21V23/005 ,  F21V23/006 ,  H01L33/24 ,  H01L33/382 ,  H01L33/405 ,  H01L33/58 ,  H01L2224/14 ,  H01L2224/16225 ,  H05B33/083 ,  H05B33/086 ,  H05B37/0272 ,  H05K1/0274 ,  H05K2201/10106

Abstract: A light emitting diode (LED) driving apparatus includes a power supply circuit configured to supply driving power to a plurality of LED arrays, a controller integrated circuit (IC) including a plurality of internal switches respectively connected to the plurality of LED arrays and configured to control a path of current flowing in the plurality of LED arrays by adjusting operations of the plurality of internal switches based on a magnitude of the driving power, and a current control circuit connected to an output terminal of a first LED array among the plurality of LED arrays and configured to adjust current flowing in the first LED array. The first LED array is constantly operated while the driving power is being supplied.

Abstract translation: 发光二极管（LED）驱动装置包括被配置为向多个LED阵列提供驱动电力的电源电路，包括分别连接到所述多个LED阵列的多个内部开关的控制器集成电路（IC），并且被配置为 通过基于驱动功率的大小调整多个内部开关的操作来控制在多个LED阵列中流动的电流的路径，以及连接到多个LED中的第一LED阵列的输出端子的电流控制电路 阵列并被配置为调节在第一LED阵列中流动的电流。 第一个LED阵列在提供驱动电源的同时不断运行。

公开(公告)号：US10123386B1

公开(公告)日：2018-11-06

申请号：US15941085

申请日：2018-03-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Cheol Bong ,  Min Soo Han ,  Hyun Jung Kim ,  Kil Yoan Chung

IPC: H05B33/08

Abstract: A lighting apparatus includes first and second light emitting areas, a color temperature controller, and a balance circuit. The first light emitting area includes first light-emitting arrays connected in series and outputs light of a first color temperature. The second light emitting area includes second light-emitting arrays connected in series and connected to the first light emitting area in parallel. The second light-emitting arrays output light of a second color temperature different from the first color temperature. The color temperature controller is selectively connected to at least one of an input node of the first light emitting area and an input node of the second light emitting area. The color temperature controllers determines an on/off state of the first and second light emitting areas. The balance circuit is connected to at least one of the first and second light emitting areas in series.

公开(公告)号：US09686833B2

公开(公告)日：2017-06-20

申请号：US15073642

申请日：2016-03-18

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sang Cheol Bong ,  Kyoung Tae Han

IPC: H05B33/08 ,  H05B37/02 ,  F21V9/16 ,  F21V3/02 ,  H01L25/16 ,  H01L25/075 ,  H01L33/62 ,  H01L33/32 ,  H01L33/12 ,  H01L33/00 ,  H01L33/06 ,  H01L33/40 ,  H01L33/42 ,  F21V8/00

CPC classification number: H05B33/0845 ,  F21V3/02 ,  F21V9/30 ,  G02B6/0083 ,  H01L25/0753 ,  H01L25/167 ,  H01L33/007 ,  H01L33/06 ,  H01L33/12 ,  H01L33/325 ,  H01L33/405 ,  H01L33/42 ,  H01L33/58 ,  H01L33/62 ,  H01L2224/14 ,  H01L2224/16225 ,  H05B33/0809 ,  H05B33/0824 ,  H05B33/083 ,  H05B33/086 ,  H05B37/0272

Abstract: An LED driving apparatus according to an exemplary embodiment of the present inventive concept may include a rectifier circuit rectifying alternating current (AC) power to generate driving power for operating a plurality of LED arrays; a controller integrated circuit (IC) including a plurality of internal switches connected to respective output terminals of the plurality of LED arrays and controlling a path of a current flowing in the plurality of LED arrays by adjusting operations of the plurality of internal switches according to a magnitude of the driving power; and a current controlling circuit connected to the output terminal of at least one of the plurality of LED arrays and controlling a current flowing in the at least one LED array.

公开(公告)号：US10362654B2

公开(公告)日：2019-07-23

申请号：US16168009

申请日：2018-10-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang Cheol Bong ,  Min Soo Han ,  Hyun Jung Kim ,  Kil Yoan Chung

IPC: H05B33/08

Abstract: A lighting apparatus includes first and second light emitting areas, a color temperature controller, and a balance circuit. The first light emitting area includes first light-emitting arrays connected in series and outputs light of a first color temperature. The second light emitting area includes second light-emitting arrays connected in series and connected to the first light emitting area in parallel. The second light-emitting arrays output light of a second color temperature different from the first color temperature. The color temperature controller is selectively connected to at least one of an input node of the first light emitting area and an input node of the second light emitting area. The color temperature controllers determines an on/off state of the first and second light emitting areas. The balance circuit is connected to at least one of the first and second light emitting areas in series.

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。