利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

17 条记录 (耗时 0.02 秒)

    Switching mode power supply circuit
    1.
    发明授权
    Switching mode power supply circuit 有权
    开关电源电路

    公开(公告)号：US08068353B2

    公开(公告)日：2011-11-29

    申请号：US12246907

    申请日：2008-10-07

    申请人： Sung Ho Kim ,  Kwang Seung Cho ,  Heung Gyoon Choi

    发明人： Sung Ho Kim ,  Kwang Seung Cho ,  Heung Gyoon Choi

    IPC分类号： H02M3/335

    CPC分类号： H02M1/4225 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16

    摘要： A switching mode power supply (SMPS) circuit includes: a rectifying unit that rectifies an AC voltage applied from an AC input terminal; a power factor correction (PFC) and standby voltage output unit that is connected to the rectifying unit and has a PFC part and a standby voltage output part integrated therein; a PFC and standby voltage control unit that is connected to the PFC and standby voltage output unit and controlling the PFC and standby voltage output unit; and a DC/DC conversion unit that is connected to the PFC and standby voltage output unit and outputting a main voltage.

    摘要翻译： 开关电源（SMPS）电路包括：整流单元，对从交流输入端施加的交流电压进行整流; 功率因数校正（PFC）和待机电压输出单元，其连接到整流单元并且具有集成在其中的PFC部分和待机电压输出部分; PFC和备用电压控制单元，连接到PFC和备用电压输出单元，并控制PFC和备用电压输出单元; 以及连接到PFC和待机电压输出单元并输出主电压的DC / DC转换单元。

    LAMP DRIVING CIRCUIT
    3.
    发明申请
    LAMP DRIVING CIRCUIT 有权
    灯驱动电路

    公开(公告)号：US20090261754A1

    公开(公告)日：2009-10-22

    申请号：US12422429

    申请日：2009-04-13

    申请人： Sung Ho Kim ,  Heung Gyoon Choi

    发明人： Sung Ho Kim ,  Heung Gyoon Choi

    IPC分类号： H05B37/02

    CPC分类号： H05B41/2828

    摘要： The present invention relates to a lamp driving circuit capable of achieving miniaturization by using a safe insulation type multi-output transformer. The lamp driving circuit in accordance with the present invention includes a rectification unit for rectifying an input voltage; a PFC (Power Factor Correction) unit for enhancing a power factor of a voltage rectified by the rectification unit and converting the rectified voltage into a DC voltage; a switching unit for switching the DC voltage of the PFC unit in order to convert the DC voltage into a square wave voltage; an insulation transformer unit which includes a transformer to secure safe insulation by including an input terminal and a ground terminal of one primary side and all output terminals of first and second secondary sides each of which includes two output terminals at sides facing each other and a resonant capacitor, and outputs a plurality of driving voltages which have the same amplitude and drive a plurality of lamps respectively by receiving the square wave voltages outputted from the switching unit; and an insulation feedback unit for sensing any one of the plurality of driving voltages and transmitting the driving voltage to the switching unit positioned at the primary side of the transformer, wherein the insulation feedback unit insulates the primary side of the transformer from the secondary side of the transformer.

    摘要翻译： 本发明涉及能够通过使用安全绝缘型多输出变压器实现小型化的灯驱动电路。 根据本发明的灯驱动电路包括：整流单元，用于整流输入电压; PFC（功率因数校正）单元，用于增强由整流单元整流的电压的功率因数，并将整流电压转换成直流电压; 切换单元，用于切换PFC单元的DC电压，以便将DC电压转换成方波电压; 绝缘变压器单元，其包括通过包括一个初级侧的输入端子和接地端子以及第一和第二次级侧面的所有输出端子来确保安全绝缘的变压器，每个侧面在彼此面对的侧面包括两个输出端子，并且谐振 电容器，并且通过接收从开关单元输出的方波电压分别输出具有相同幅度的多个驱动电压并分别驱动多个灯; 以及绝缘反馈单元，用于感测多个驱动电压中的任何一个，并将驱动电压传输到位于变压器初级侧的开关单元，其中绝缘反馈单元将变压器的初级侧与 变压器。

    Lamp driving circuit
    4.
    发明授权
    Lamp driving circuit 有权
    灯驱动电路

    公开(公告)号：US08084954B2

    公开(公告)日：2011-12-27

    申请号：US12422429

    申请日：2009-04-13

    申请人： Sung Ho Kim ,  Heung Gyoon Choi

    发明人： Sung Ho Kim ,  Heung Gyoon Choi

    IPC分类号： H05B37/02

    CPC分类号： H05B41/2828

    摘要： The present invention relates to a lamp driving circuit capable of achieving miniaturization by using a safe insulation type multi-output transformer. The lamp driving circuit in accordance with the present invention includes a rectification unit for rectifying an input voltage; a PFC (Power Factor Correction) unit for enhancing a power factor of a voltage rectified by the rectification unit and converting the rectified voltage into a DC voltage; a switching unit for switching the DC voltage of the PFC unit in order to convert the DC voltage into a square wave voltage; an insulation transformer unit which includes a transformer to secure safe insulation by including an input terminal and a ground terminal of one primary side and all output terminals of first and second secondary sides each of which includes two output terminals at sides facing each other and a resonant capacitor, and outputs a plurality of driving voltages which have the same amplitude and drive a plurality of lamps respectively by receiving the square wave voltages outputted from the switching unit; and an insulation feedback unit for sensing any one of the plurality of driving voltages and transmitting the driving voltage to the switching unit positioned at the primary side of the transformer, wherein the insulation feedback unit insulates the primary side of the transformer from the secondary side of the transformer.

    摘要翻译： 本发明涉及能够通过使用安全绝缘型多输出变压器实现小型化的灯驱动电路。 根据本发明的灯驱动电路包括：整流单元，用于整流输入电压; PFC（功率因数校正）单元，用于增强由整流单元整流的电压的功率因数，并将整流电压转换成直流电压; 切换单元，用于切换PFC单元的DC电压，以便将DC电压转换成方波电压; 绝缘变压器单元，其包括通过包括一个初级侧的输入端子和接地端子以及第一和第二次级侧面的所有输出端子来确保安全绝缘的变压器，每个侧面在彼此面对的侧面包括两个输出端子，并且谐振 电容器，并且通过接收从开关单元输出的方波电压分别输出具有相同幅度的多个驱动电压并分别驱动多个灯; 以及绝缘反馈单元，用于感测多个驱动电压中的任何一个，并将驱动电压传输到位于变压器初级侧的开关单元，其中绝缘反馈单元将变压器的初级侧与 变压器。

    Transformer
    6.
    发明授权
    Transformer 有权
    变压器

    公开(公告)号：US08698587B2

    公开(公告)日：2014-04-15

    申请号：US13175660

    申请日：2011-07-01

    申请人： Geun Young Park ,  Sang Joon Seo ,  Choong Sik Yoo ,  Heung Gyoon Choi ,  Moo Jong Kang ,  Hwi Beom Shin ,  Young Min Lee ,  Jong Hae Kim

    发明人： Geun Young Park ,  Sang Joon Seo ,  Choong Sik Yoo ,  Heung Gyoon Choi ,  Moo Jong Kang ,  Hwi Beom Shin ,  Young Min Lee ,  Jong Hae Kim

    IPC分类号： H01F27/29

    CPC分类号： H01F27/325 ,  H01F27/2828 ,  H01F27/306 ,  H01F2005/025

    摘要： There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and external connection terminals protruding from one side of a lower flange part formed at a lower end of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an inner bobbin and an outer bobbin, and the inner bobbin is coupled to the outer bobbin such that the external connection terminals of the inner bobbin and the external connection terminals of the outer bobbin are opposed to each other.

    摘要翻译： 提供了能够用于诸如液晶显示器（LCD）装置和发光二极管（LED）显示装置的薄型显示装置中的薄型变压器。 变压器包括：包括多个线轴的绕线筒部，每个线轴均包括在其内部形成有通孔的管状主体部，从主体部的两端向外突出的凸缘部，以及外部连接端子 从形成在本体部的下端的下凸缘部的一侧突出; 插入到筒管的通孔中的芯体，从而形成磁路; 以及线圈部，其包括卷绕在所述多个线轴上的线圈，所述线轴部包括内筒管和外筒管，所述内筒管与所述外筒管结合，使得所述内筒管的外部连接端子和所述外筒 外筒管的连接端子彼此相对。

    LAMP DRIVER
    7.
    发明申请
    LAMP DRIVER 失效
    灯驱动器

    公开(公告)号：US20110234111A1

    公开(公告)日：2011-09-29

    申请号：US12887356

    申请日：2010-09-21

    申请人： Sang Kyoo Han ,  Sung Soo Hong ,  Chung Wook Roh ,  Sang Gab Park ,  Young Seung Roh ,  Hyo Joong An ,  Heung Gyoon Choi ,  Han Hee Lee

    发明人： Sang Kyoo Han ,  Sung Soo Hong ,  Chung Wook Roh ,  Sang Gab Park ,  Young Seung Roh ,  Hyo Joong An ,  Heung Gyoon Choi ,  Han Hee Lee

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0851 ,  H05B33/0818 ,  H05B41/2824 ,  H05B41/3927

    摘要： There is provided a lamp driver including: a power supplying part switching an input power, supplying a driving power to at least one lamp, and controlling brightness of the at least one lamp according to a dimming signal; a signal supplying part supplying a first comparison result signal obtained by comparing a current sensing signal sensing a current flowing through the at least one lamp with a reference signal having a current level set beforehand when the dimming signal is a logic high signal, and supplying a second comparison result signal having a voltage level set beforehand when the dimming signal is a logic low signal; and a controlling part controlling the switching of the power supplying part according to a signal being supplied by the signal supplying part.

    摘要翻译： 提供了一种灯驱动器，包括：电源部，切换输入电力，向至少一个灯提供驱动电力，并根据调光信号控制所述至少一个灯的亮度; 信号供给部，其通过将感测流过所述至少一个灯的电流的电流感测信号与当所述调光信号为逻辑高信号时预先设定的电流电平的参考信号进行比较而获得的第一比较结果信号， 当调光信号为逻辑低信号时，具有预先设定的电压电平的第二比较结果信号; 以及控制部，其根据由信号供给部供给的信号来控制供电部的切换。

    Multi power supply apparatus for driving light emitting diodes
    8.
    发明授权
    Multi power supply apparatus for driving light emitting diodes 有权
    用于驱动发光二极管的多电源装置

    公开(公告)号：US08860317B2

    公开(公告)日：2014-10-14

    申请号：US13017695

    申请日：2011-01-31

    申请人： Sang Gab Park ,  Heung Gyoon Choi ,  Nam Jin Park ,  Tae Shik Kim ,  Tae Hyung Kang

    发明人： Sang Gab Park ,  Heung Gyoon Choi ,  Nam Jin Park ,  Tae Shik Kim ,  Tae Hyung Kang

    IPC分类号： H05B37/02 ,  H05B33/08

    CPC分类号： H05B33/0815 ,  Y02B20/346

    摘要： There is provided a multi power supply apparatus for driving light emitting diodes that is synchronized with a frequency of one output power of multi output power to control a switching of the multi output power and simplifies power conversion in supplying power for driving light emitting diodes. The multi power supply apparatus for driving light emitting diodes includes a power converter that converts an input power into a first power according to a preset first conversion scheme and converts the input power into a second power according to a second conversion scheme set to be different from the first conversion scheme; first and second drivers that receive the first power and the second power from the power converter to drive light emitting diodes; a feedback unit that feedbacks detection signal from the first and second LED drivers; and a power conversion controller that controls a power conversion switching frequency of the first power of the power converter according to the detection signal from the feedback unit and is synchronized with the power conversion switching frequency to control a duty of the second power of the converter.

    摘要翻译： 提供了一种用于驱动与多输出功率的一个输出功率的频率同步的发光二极管的多电源装置，以控制多输出功率的切换，并且简化了用于驱动发光二极管的电力的功率转换。 用于驱动发光二极管的多电源装置包括：功率转换器，其根据预设的第一转换方案将输入功率转换为第一功率，并根据设置为不同于第二转换方案的第二转换方案将输入功率转换为第二功率 第一个转换方案; 接收来自功率转换器的第一和第二驱动器驱动发光二极管的第一和第二驱动器; 反馈单元，反馈来自第一和第二LED驱动器的检测信号; 以及电力转换控制器，其根据来自反馈单元的检测信号来控制功率转换器的第一功率的功率转换开关频率，并与功率转换开关频率同步，以控制转换器的第二功率的占空比。

    TRANSFORMER
    9.
    发明申请
    TRANSFORMER 有权
    变压器

    公开(公告)号：US20120001717A1

    公开(公告)日：2012-01-05

    申请号：US13175660

    申请日：2011-07-01

    申请人： Geun Young PARK ,  Sang Joon Seo ,  Choong Sik Yoo ,  Heung Gyoon Choi ,  Moo Jong Kang ,  Hwi Beom Shin ,  Young Min Lee ,  Jong Hae Kim

    发明人： Geun Young PARK ,  Sang Joon Seo ,  Choong Sik Yoo ,  Heung Gyoon Choi ,  Moo Jong Kang ,  Hwi Beom Shin ,  Young Min Lee ,  Jong Hae Kim

    IPC分类号： H01F17/00

    CPC分类号： H01F27/325 ,  H01F27/2828 ,  H01F27/306 ,  H01F2005/025

    摘要： There is provided a thin transformer capable of being used in a thin display device such as a liquid crystal display (LCD) device and a light emitting diode (LED) display device. The transformer includes: a bobbin part including a plurality of bobbins, each including a pipe shaped body part having a though-hole formed in an inner portion thereof, a flange part vertically protruding outwardly from both ends of the body part, and external connection terminals protruding from one side of a lower flange part formed at a lower end of the body part; a core inserted into the through-hole of the bobbin to thereby form a magnetic path; and a coil part including coils each wound around the plurality of bobbins, wherein the bobbin part includes an inner bobbin and an outer bobbin, and the inner bobbin is coupled to the outer bobbin such that the external connection terminals of the inner bobbin and the external connection terminals of the outer bobbin are opposed to each other.

    摘要翻译： 提供了能够用于诸如液晶显示器（LCD）装置和发光二极管（LED）显示装置的薄型显示装置中的薄型变压器。 变压器包括：包括多个线轴的绕线筒部，每个线轴均包括在其内部形成有通孔的管状主体部，从主体部的两端向外突出的凸缘部，以及外部连接端子 从形成在本体部的下端的下凸缘部的一侧突出; 插入到筒管的通孔中的芯体，从而形成磁路; 以及线圈部，其包括卷绕在所述多个线轴上的线圈，所述线轴部包括内筒管和外筒管，所述内筒管与所述外筒管结合，使得所述内筒管的外部连接端子和所述外筒 外筒管的连接端子彼此相对。