公开(公告)号：US20150373799A1

公开(公告)日：2015-12-24

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

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。

公开(公告)号：US20150373792A1

公开(公告)日：2015-12-24

申请号：US14587676

申请日：2014-12-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chang Seob KIM ,  Kyu Cheol KANG

IPC: H05B33/08

CPC classification number: H05B33/0824

Abstract: A light emitting diode (LED) driving device includes a rectifier configured to rectify alternating current power to generate rectified power, an AC driver configured to control respective operations of the plurality of LED groups based on a voltage of the rectified power, and a controller configured to control an operation of the AC driver based on a control command received through a digital addressable lighting interface (DALI) communications protocol, and operate based on the rectified power received as driving power.

Abstract translation: 发光二极管（LED）驱动装置包括：整流器，被配置为整流交流电力以产生整流功率; AC驱动器，被配置为基于整流功率的电压来控制所述多个LED组的各个操作;以及控制器， 基于通过数字可寻址照明接口（DALI）通信协议接收的控制命令来控制AC驱动器的操作，并且基于作为驱动功率接收到的整流功率进行操作。

公开(公告)号：US20190075630A1

公开(公告)日：2019-03-07

申请号：US15936543

申请日：2018-03-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE ,  Kyu Cheol KANG ,  Kil Yoan CHUNG

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0845 ,  H05B33/0806 ,  H05B33/0815 ,  H05B37/02

Abstract: A light emitting diode driving apparatus includes a rectifier, a converter, a feedback circuit, and a controller. The rectifier converts alternating current power to direct current (DC) power. The converter supplies driving power to a plurality of LEDs based on the DC power. The feedback circuit generates a feedback signal based on a current flowing in the plurality of LEDs and adjusts a magnitude of the feedback signal. The controller changes a maximum value of a current output by the converter based on the adjusted magnitude of the feedback signal.

公开(公告)号：US20150130363A1

公开(公告)日：2015-05-14

申请号：US14336880

申请日：2014-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE ,  Kyu Cheol KANG

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815

Abstract: A light emitting diode (LED) driving device includes a rectifier, a voltage converter, a variable impedance unit, and a controller. The rectifier rectifies an alternating current (AC) voltage to generate a first voltage. The voltage converter generates a second voltage for driving a plurality of LEDs from the first voltage. The variable impedance unit is connected to an input terminal of the rectifier. The controller adjusts impedance of the variable impedance unit based on at least one of the first and second voltages.

Abstract translation: 发光二极管（LED）驱动装置包括整流器，电压转换器，可变阻抗单元和控制器。 整流器整流交流（AC）电压以产生第一电压。 电压转换器从第一电压产生用于驱动多个LED的第二电压。 可变阻抗单元连接到整流器的输入端子。 控制器基于第一和第二电压中的至少一个来调节可变阻抗单元的阻抗。

公开(公告)号：US20140049187A1

公开(公告)日：2014-02-20

申请号：US14056912

申请日：2013-10-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin Sung KIM ,  Kyu Cheol KANG ,  Jin Woo BAE ,  Choul Ho LEE ,  Jong Yang CHOO

IPC: H05B33/08 ,  H05B33/10 ,  F21V23/02

CPC classification number: H05B33/0893 ,  F21V23/02 ,  H05B33/0854 ,  H05B33/10 ,  H05B37/02 ,  Y10T29/49004

Abstract: A method of manufacturing a power supply unit (PSU) is provided. The method includes providing at least one PSU supplying a dimming signal to at least one light source, performing a first test for electrical characteristics of the at least one PSU, detecting light emitted from the at least one light source, measuring a flicker of the at least one light source, and performing a second test for a state of the at least one PSU based on a flicker measurement result, and packing a PSU determined to be in a normal state among the at least one PSU, as a result of the first test and the second test.

Abstract translation: 提供一种制造电源单元（PSU）的方法。 该方法包括：向至少一个光源提供至少一个提供调光信号的PSU，对所述至少一个PSU的电特性执行第一测试，检测从所述至少一个光源发射的光，测量所述至少一个光源的闪烁 至少一个光源，并且基于闪烁测量结果对所述至少一个PSU的状态执行第二测试，并且将所述至少一个PSU中确定为处于正常状态的PSU进行打包，作为所述第一 测试和第二次测试。

公开(公告)号：US20150195874A1

公开(公告)日：2015-07-09

申请号：US14491462

申请日：2014-09-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyu Cheol KANG

IPC: H05B33/08 ,  H01L33/14 ,  H01L27/15

CPC classification number: H05B33/083 ,  H01L33/382 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48237 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2924/181 ,  H01L2924/00012 ,  H01L2924/00014

Abstract: A light emitting device includes a light source unit, a connection controller, and a driving controller. The light source unit includes a first LED array including a plurality of first LEDs connected in series and a second LED array including a plurality of second LEDs connected in series. The connection controller selectively sets a connection structure between the first and second LED arrays as a series connection, a parallel connection, or a series-parallel connection based on a peak value of a driving voltage driving the light source unit. The driving controller controls the number of LEDs driven in the light source unit according to a magnitude of the driving voltage. Each of the first and second LED arrays is connected between a plurality of first nodes and a plurality of second nodes.

Abstract translation: 发光装置包括光源单元，连接控制器和驱动控制器。 光源单元包括包括串联连接的多个第一LED的第一LED阵列和包括串联连接的多个第二LED的第二LED阵列。 连接控制器基于驱动光源单元的驱动电压的峰值，选择性地将第一和第二LED阵列之间的连接结构设置为串联连接，并联连接或串联并联连接。 驱动控制器根据驱动电压的大小来控制在光源单元中驱动的LED的数量。 第一和第二LED阵列中的每一个连接在多个第一节点和多个第二节点之间。