中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.016 seconds)

    Light emitting device array and light source device using the same
    1.
    发明授权
    Light emitting device array and light source device using the same 有权

    公开(公告)号：US09854633B1

    公开(公告)日：2017-12-26

    申请号：US15437020

    申请日：2017-02-20

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Bong Jin Lee ,  Kil Yoan Chung

    IPC: H05B33/08

    CPC classification number: H05B33/083 ,  H05B33/0827

    Abstract: A light emitting device array comprises a plurality of light emitting diode (LED) strings connected in parallel to each other, each of which includes a plurality of light emitting devices connected in series. A sum of forward voltages (Vf) of a plurality of light emitting devices included in at least one LED string among the plurality of LED strings is less than that of forward voltages of a plurality of light emitting devices included in a different LED string. The at least one LED string includes a voltage compensation unit, to compensate for a difference in forward voltage levels between the at least one LED string and the different LED string.

    LED driving device
    2.
    发明授权
    LED driving device 有权

    公开(公告)号：US09794993B2

    公开(公告)日：2017-10-17

    申请号：US15015117

    申请日：2016-02-03

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Bong Jin Lee

    IPC: H05B37/02 ,  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.

    Light source driving device and illuminating apparatus using the same
    4.
    发明授权
    Light source driving device and illuminating apparatus using the same 有权
    光源驱动装置及使用其的照明装置

    公开(公告)号：US09055636B2

    公开(公告)日：2015-06-09

    申请号：US14034324

    申请日：2013-09-23

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Bong Jin Lee

    IPC: H05B37/00 ,  H05B39/00 ,  H05B41/14 ,  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。

    LED module and lighting apparatus
    6.
    发明授权
    LED module and lighting apparatus 有权

    公开(公告)号：US10588193B2

    公开(公告)日：2020-03-10

    申请号：US16050438

    申请日：2018-07-31

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Bong Jin Lee ,  June Jang

    IPC: 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.

    LED driving apparatus and lighting apparatus
    7.
    发明授权
    LED driving apparatus and lighting apparatus 有权

    公开(公告)号：US10542600B2

    公开(公告)日：2020-01-21

    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

    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.

    Driving light emitting diode (LED) lamps using power received from ballast stabilizers
    8.
    发明授权
    Driving light emitting diode (LED) lamps using power received from ballast stabilizers 有权
    使用从镇流器稳定器接收的功率驱动发光二极管（LED）灯

    公开(公告)号：US09439250B2

    公开(公告)日：2016-09-06

    申请号：US14053377

    申请日：2013-10-14

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Bong Jin Lee

    IPC: H05B33/08 ,  H05B37/02

    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。

    Light source driving apparatus, light source device including the same and light source driving method of the light source driving apparatus
    9.
    发明授权
    Light source driving apparatus, light source device including the same and light source driving method of the light source driving apparatus 有权
    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装置的光源驱动方法

    公开(公告)号：US09125258B2

    公开(公告)日：2015-09-01

    申请号：US13869647

    申请日：2013-04-24

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Bong Jin Lee

    IPC: H01J1/52 ,  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。

Patent Agency Ranking