公开(公告)号：US20170064785A1

公开(公告)日：2017-03-02

申请号：US15086952

申请日：2016-03-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyun Jung KIM ,  Bong Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/086 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/0845 ,  H05B33/0884 ,  H05B37/02

Abstract: A light emitting diode (LED) driving apparatus includes: a power supply circuit supplying driving power to a first LED group and a second LED group, the first LED group and the second LED group being configured to emit light having different color temperatures; a current controlling circuit controlling a first magnitude of a first current flowing through the first LED group and a second magnitude of a second current flowing through the second LED group; and an LED controller concurrently controlling on/off switching operations of a first LED of the first LED group and a second LED of the second LED group.

Abstract translation: 发光二极管（LED）驱动装置包括：向第一LED组和第二LED组提供驱动电力的电源电路，第一LED组和第二LED组被配置为发射具有不同色温的光; 电流控制电路，其控制流过所述第一LED组的第一电流的第一幅度和流过所述第二LED组的第二电流的第二大小; 以及LED控制器，同时控制第一LED组的第一LED和第二LED组的第二LED的开/关切换操作。

公开(公告)号：US20150305109A1

公开(公告)日：2015-10-22

申请号：US14602147

申请日：2015-01-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE ,  Hyun Jung KIM

IPC: H05B33/08

CPC classification number: H05B33/0851 ,  H05B33/0815

Abstract: An LED driver may include an LED driving unit includes a substrate and a driving circuit provided with the substrate that includes one or more detecting resistors. A controller is configured to control an operation of the LED driving unit, based on a voltage detected by the one or more detecting resistors. The detecting resistors may include first and second conductive wire patterns disposed on a first surface of the substrate and a second surface opposing the first surface, respectively, and one or more conductive vias electrically connect the first and second conductive wire patterns.

Abstract translation: LED驱动器可以包括LED驱动单元，其包括基板和设置有包括一个或多个检测电阻器的基板的驱动电路。 控制器被配置为基于由一个或多个检测电阻器检测到的电压来控制LED驱动单元的操作。 检测电阻器可以包括分别设置在基板的第一表面上的第一和第二导线图案和分别与第一表面相对的第二表面，并且一个或多个导电通孔电连接第一和第二导线图案。

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：US20150054417A1

公开(公告)日：2015-02-26

申请号：US14328495

申请日：2014-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0872 ,  H05B37/0272

Abstract: The disclosed implementations include a light emitting diode (LED) driving device including a DC-DC converter generating a driving signal with respect to a plurality of LEDs, a rectifying unit rectifying an alternating current (AC) signal to generate a direct current (DC) signal, a power factor correction (PFC) converter connected to the rectifying unit, and a controller detecting an output from the DC-DC converter and an output from the PFC converter to determine input impedance of the PFC converter.

Abstract translation: 所公开的实施方案包括：发光二极管（LED）驱动装置，其包括相对于多个LED产生驱动信号的DC-DC转换器;整流单元整流交流（AC）信号以产生直流（DC） 信号，连接到整流单元的功率因数校正（PFC）转换器，以及控制器，其检测来自DC-DC转换器的输出和来自PFC转换器的输出，以确定PFC转换器的输入阻抗。

公开(公告)号：US20140042905A1

公开(公告)日：2014-02-13

申请号：US13869647

申请日：2013-04-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0815 ,  H05B33/0887

Abstract: Provided are a light source driving apparatus, a light source device including the same, and a light source driving method. The light source driving apparatus includes: a first external input terminal and a second external input terminal; a thermistor with an end connected to the first external input terminal; a discharge resistor with an end connected to the second external input terminal; and a switch which selectively connects, according to a control signal, another end of the discharge resistor to another end of the thermistor or the first external input terminal to the other end of the thermistor.

Abstract translation: 提供了一种光源驱动装置，包括该光源驱动装置的光源装置和光源驱动方法。 光源驱动装置包括：第一外部输入端子和第二外部输入端子; 热敏电阻，其端部连接到第一外部输入端子; 放电电阻，其端部连接到第二外部输入端子; 以及开关，其根据控制信号将放电电阻器的另一端连接到热敏电阻的另一端或第一外部输入端子到另一端。

公开(公告)号：US20190234567A1

公开(公告)日：2019-08-01

申请号：US16050438

申请日：2018-07-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE ,  June JANG

IPC: F21S4/20 ,  H05B33/08 ,  F21V23/00

Abstract: A light emitting diode (LED) module includes a plurality of LED strings and a module controller. The LED strings are connected to each other in parallel, and each of the LED strings emits light that has a different color temperature from that of the other LED strings. The module controller is configured to detect an input voltage applied to the plurality of LED strings, adjust a color temperature of the light emitted by the plurality of LED strings by adjusting a ratio of current respectively supplied to each of the plurality of LED strings based on the input voltage, and reduce a change in a luminous flux of the light emitted by the plurality of LED strings regardless of the color temperature of the light emitted by the plurality of LED strings.

公开(公告)号：US20160323949A1

公开(公告)日：2016-11-03

申请号：US15015117

申请日：2016-02-03

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bong Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  Y02B20/346

Abstract: A light-emitting diode (LED) driving device comprising: a rectifier configured to convert alternating current (AC) power to direct current (DC) power; a convertor including: a transformer including a primary-side winding connected to the rectifier; and a main switch connected to the primary-side winding of the transformer; a controller configured to output a control signal to the main switch in response to a feedback signal; and an output modifier configured to modify the feedback signal.

Abstract translation: 一种发光二极管（LED）驱动装置，包括：整流器，被配置为将交流（AC）功率转换成直流（DC）功率; 转换器，包括：变压器，包括连接到整流器的初级侧绕组; 和连接到变压器的初级侧绕组的主开关; 控制器，被配置为响应于反馈信号将控制信号输出到主开关; 以及输出修改器，其被配置为修改反馈信号。

公开(公告)号：US20140084799A1

公开(公告)日：2014-03-27

申请号：US14034324

申请日：2013-09-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/0815

Abstract: A light source driving device includes a transformer, a rectifying diode, a filter, and an open loop preventing circuit. The transformer has a primary winding part including first and second external input terminals configured to receive external power from a ballast stabilizer and a coil having an impedance level set to allow the ballast stabilizer to output a normal amount of power, and a secondary winding part electromagnetically coupled to the primary winding part to transform received external power. The rectifying diode rectifies power from the secondary winding part, and the filter filters the rectified power from the rectifying diode. The open loop preventing circuit provides a closed loop to the filter such that power stored in the filter is applied to the output terminal when the rectifying diode is turned off.

Abstract translation: 光源驱动装置包括变压器，整流二极管，滤波器和开环防止电路。 变压器具有初级绕组部分，其包括构造成从镇流器稳定器接收外部电力的第一和第二外部输入端子以及设置阻抗水平的线圈，以允许镇流稳定器输出正常量的功率;以及次级绕组部分电磁 耦合到初级绕组部分以转换接收到的外部电源。 整流二极管对次级绕组部分的功率进行整流，滤波器对整流二极管的整流功率进行滤波。 开环防止电路为滤波器提供闭环，使得当整流二极管截止时，存储在滤波器中的功率被施加到输出端子。

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：US20140084800A1

公开(公告)日：2014-03-27

申请号：US14053377

申请日：2013-10-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Bong Jin LEE

IPC: H05B33/08

CPC classification number: H05B33/0809 ,  H05B33/0815 ,  H05B33/0872 ,  H05B33/0896 ,  H05B37/0227

Abstract: A circuit drives a light emitting diode (LED) lamp based on alternating current (AC) power received from a ballast stabilizer. The circuit includes an inductive load, a rectifying circuit, and an output circuit. The inductive load is coupled to and receives the AC power from the ballast stabilizer. The rectifying circuit is electrically coupled to the inductive load and rectifies the AC power to produce a unidirectional current. The output circuit receives the unidirectional current from the rectifying circuit, and produces an output current for driving the LED lamp. Various additional circuits and illuminating apparatuses for producing light from AC power using a LED lamp are also provided.

Abstract translation: 电路基于从镇流器稳定器接收的交流（AC）功率驱动发光二极管（LED）灯。 电路包括电感负载，整流电路和输出电路。 电感负载耦合到并从镇流器稳压器接收AC电力。 整流电路电耦合到电感负载并整流交流电源以产生单向电流。 输出电路从整流电路接收单向电流，并产生用于驱动LED灯的输出电流。 还提供了用于使用LED灯从AC电力产生光的各种附加电路和照明装置。