知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.017 秒)

    SWITCHING MODE CONVERTER AND METHOD FOR CONTROLLING THEREOF
    1.
    发明申请
    SWITCHING MODE CONVERTER AND METHOD FOR CONTROLLING THEREOF 有权
    切换模式转换器及其控制方法

    公开(公告)号：US20140062449A1

    公开(公告)日：2014-03-06

    申请号：US13954156

    申请日：2013-07-30

    申请人： Silicon Works Co., Ltd.

    发明人： Wanyuan Qu ,  Young Jin Woo ,  Jin Yong Jeon ,  Dae Keun Han ,  Young Suk Son

    IPC分类号： G05F3/02

    CPC分类号： G05F3/02 ,  H02M1/36 ,  H02M3/1582 ,  H02M3/1584 ,  H02M3/1588 ,  Y02B70/1466

    摘要： Disclosed herein are a switching mode converter and a method for controlling thereof. The switching mode converter includes a switching element, a bootstrap capacitor, and a control unit. The switching element is connected between one side of a first semiconductor device, another side of the first semiconductor device is connected to a ground, and an input power. The bootstrap capacitor is configured such that one side of the bootstrap capacitor is connected to the one side of the first semiconductor device. The control unit controls the output current or output voltage of a common charge pump provided to the switching element and the bootstrap capacitor in order to control the charging state of the bootstrap capacitor and the gate voltage of the switching element.

    摘要翻译： 这里公开了一种开关模式转换器及其控制方法。 开关模式转换器包括开关元件，自举电容器和控制单元。 开关元件连接在第一半导体器件的一侧之间，第一半导体器件的另一侧连接到地和输入电源。 自举电容器被配置为使得自举电容器的一侧连接到第一半导体器件的一侧。 控制单元控制提供给开关元件和自举电容器的公共电荷泵的输出电流或输出电压，以控制自举电容器的充电状态和开关元件的栅极电压。

    Device for driving light emitting diode
    2.
    发明授权
    Device for driving light emitting diode 有权
    用于驱动发光二极管的装置

    公开(公告)号：US08686649B2

    公开(公告)日：2014-04-01

    申请号：US13661241

    申请日：2012-10-26

    申请人： Silicon Works Co., Ltd.

    发明人： So Bong Shin ,  Wanyuan Qu ,  Won Ji Lee ,  Yong Goo Kim ,  Ok Hwan Kwon ,  Gyeong Sik Mun ,  Young Suk Son

    IPC分类号： H05B37/02

    CPC分类号： H05B33/083

    摘要： The present invention introduces a device and a method for driving an LED with an improved power factor without using a voltage detector having a large amount of area and power consumption. The device for driving an LED includes a power supply unit, an LED array, and a current path select circuit. The LED array 320 is connected with the power supply unit in parallel and includes at least one LED string including LED channels LED1 to LEDn that are configured of a plurality of LEDs connected in series. The current path select circuit selects a path of current flowing from output terminals of the plurality of LED channels according to voltage levels of each of the output terminals of the plurality of LED channels.

    摘要翻译： 本发明在不使用具有大面积和功耗的电压检测器的情况下引入了具有改善的功率因数来驱动LED的装置和方法。 用于驱动LED的装置包括电源单元，LED阵列和电流路径选择电路。 LED阵列320与电源单元并联连接，并且包括由串联连接的多个LED构成的LED通道LED1〜LEDn的至少一个LED串。 电流路径选择电路根据多个LED通道的每个输出端子的电压电平来选择从多个LED通道的输出端流出的电流路径。

    Lamp control device
    3.
    发明授权
    Lamp control device 有权

    公开(公告)号：US10051695B2

    公开(公告)日：2018-08-14

    申请号：US15116668

    申请日：2015-12-30

    申请人： SILICON WORKS CO., LTD.

    发明人： Sung Hwan Kim ,  Joo Wan Ha ,  Sun Geon Yoo ,  Hai Feng Jin ,  Ju Hyun Lee ,  Wanyuan Qu ,  Se Won Lee ,  Byeong Ho Jeong ,  Ju Pyo Hong

    IPC分类号： H05B33/08 ,  F21S8/10 ,  F21S43/14 ,  B60Q1/30

    摘要： A lamp control device includes a converter configured to provide an output voltage and an internal voltage; a lamp including an LED module which has a plurality of LED channels, and configured to emit light in correspondence to the output voltage of the converter; and a controller configured to operate by using the internal voltage of the converter, control the output voltage of the converter to be retained at a level equal to or higher than a predetermined level, by using feedback voltages of the plurality of LED channels, and control channel currents of the plurality of LED channels to be regulated in correspondence to memory values which are set in advance.

    LOW DROPOUT CIRCUIT CAPABLE OF CONTROLLED STARTUP AND METHOD OF CONTROLLING SAME
    9.
    发明申请
    LOW DROPOUT CIRCUIT CAPABLE OF CONTROLLED STARTUP AND METHOD OF CONTROLLING SAME 审中-公开
    可控制启动的低压差电路及其控制方法

    公开(公告)号：US20150137781A1

    公开(公告)日：2015-05-21

    申请号：US14593856

    申请日：2015-01-09

    申请人： Silicon Works Co., Ltd.

    发明人： Wanyuan Qu ,  Young Jin Woo ,  Jin Yong Jeon ,  Dae Keun Han ,  Young Suk Son

    IPC分类号： G05F1/56

    CPC分类号： G05F1/56

    摘要： A low dropout (LDO) circuit capable of controlled startup and a method of controlling the same are disclosed herein. The LDO circuit includes an amplifier, a pass element, and a startup control circuit. The amplifier receives a feedback voltage determined by an output voltage and a predetermined reference voltage, and provides a first voltage determined by the feedback voltage and the reference voltage. The pass element is connected to an input power and an output node for providing the output voltage. The startup control circuit includes a current source, and forward one of the first voltage, provided by the amplifier based on the level of the output voltage, and a second voltage, generated using the current source, to the gate of the pass element.

    摘要翻译： 本文公开了能够控制启动的低压差（LDO）电路及其控制方法。 LDO电路包括放大器，通过元件和启动控制电路。 放大器接收由输出电压和预定参考电压确定的反馈电压，并提供由反馈电压和参考电压确定的第一电压。 通过元件连接到输入电源和用于提供输出电压的输出节点。 启动控制电路包括电流源，并且基于输出电压的电平将由放大器提供的第一电压中的一个和使用电流源产生的第二电压转发到通过元件的栅极。