中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

22 records (took 0.019 seconds)

    GATE DRIVING CIRCUIT, AND SWITCHING APPARATUS AND POWER SUPPLY APPARATUS HAVING THE SAME
    3.
    发明申请
    GATE DRIVING CIRCUIT, AND SWITCHING APPARATUS AND POWER SUPPLY APPARATUS HAVING THE SAME 有权
    闸门驱动电路，开关装置和具有相同功能的电源装置

    公开(公告)号：US20150117065A1

    公开(公告)日：2015-04-30

    申请号：US14288070

    申请日：2014-05-27

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Sang Hyun CHA ,  Deuk Hee PARK ,  Yun Joong LEE ,  Joong Ho CHOI ,  Je Hyeon YU ,  Hyeon Seon YU ,  Chang Seok LEE

    IPC: H03K17/06 ,  H02M3/335 ,  H03K17/687

    CPC classification number: H03K17/063 ,  H02M3/33507 ,  H03K17/687

    Abstract: A gate driving circuit may include: a bias unit receiving an input signal having preset high and low signal levels, including a first N-MOSFET turned on in the case in which the input signal has the high level and a first P-MOSFET turned on in the case in which the input signal has the low level, and supplying bias powers by the turning-on of the first N-MOSFET and the first P-MOSFET; and an amplifying unit including a second N-MOSFET turned on by receiving the bias power supplied from the first N-MOSFET in the case in which the input signal has the high level and a second P-MOSFET turned on by receiving the bias power supplied from the first P-MOSFET turned on in the case in which the input signal has the low level and providing a gate signal depending on the turning-on of the second N-MOSFET and the second P-MOSFET.

    Abstract translation: 栅极驱动电路可以包括：偏置单元，其接收具有预置的高和低信号电平的输入信号，包括在输入信号具有高电平的情况下导通的第一N-MOSFET和导通的第一P-MOSFET 在输入信号为低电平的情况下，通过第一N-MOSFET和第一P-MOSFET的导通来提供偏置功率; 以及放大单元，其包括通过在输入信号具有高电平的情况下接收从第一N-MOSFET提供的偏置功率而导通的第二N-MOSFET，并且通过接收提供的偏置功率来接通第二P-MOSFET 在其中输入信号具有低电平并且根据第二N-MOSFET和第二P-MOSFET的导通而提供栅极信号的情况下，第一P-MOSFET导通。

    POSITION DETECTING DEVICE OF APERTURE MODULE
    4.
    发明申请
    POSITION DETECTING DEVICE OF APERTURE MODULE 有权

    公开(公告)号：US20210203823A1

    公开(公告)日：2021-07-01

    申请号：US16852845

    申请日：2020-04-20

    Applicant: Samsung Electro-Mechanics Co., Ltd.

    Inventor： Je Hyeon YU ,  Ji Buem CHUN ,  Ja Hwi CHO ,  Sang Hyun MIN

    IPC: H04N5/238 ,  H04N5/225 ,  G01D5/14

    Abstract: A position detecting device for detecting a position of a magnet configured to move over a first target point and a second target point in steps includes a first hall device configured to generate a first hall voltage, a second hall device configured to generate a second hall voltage, a subtractor configured to generate a subtraction voltage based on a difference between the first hall voltage and the second hall voltage, an adder configured to generate an addition voltage based on a combination of the first hall voltage and the second hall voltage, a divider configured to calculate a ratio of the subtraction voltage to the addition voltage, and a subtraction voltage changing unit configured to maintain the subtraction voltage at the first target point and the second target point and in a transition section between the first target point and the second target point to be constant.

    APPARATUS AND METHOD CONTROLLING POSITION OF CAMERA MODULE WITH A SINGLE COIL
    5.
    发明申请
    APPARATUS AND METHOD CONTROLLING POSITION OF CAMERA MODULE WITH A SINGLE COIL 审中-公开

    公开(公告)号：US20190154955A1

    公开(公告)日：2019-05-23

    申请号：US16035968

    申请日：2018-07-16

    Applicant: Samsung Electro-Mechanics Co., Ltd.

    Inventor： Sung Man PANG ,  Youn Joong LEE ,  Ja Hwi CHO ,  Je Hyeon YU ,  Jin KIM

    IPC: G02B7/10 ,  G02B13/00 ,  H04N5/225 ,  H04N5/232

    Abstract: An apparatus controlling a position of a camera module includes an operating coil disposed on a housing of the camera module to face a magnetic member disposed on a lens barrel of the camera module, a driving circuit providing a driving current to the operating coil, a capacitor circuit having a capacitor value to form a resonance circuit together with the operating coil to resonate at a resonance frequency varied depending on an inductance value of the operating coil; a resonance maintaining circuit maintaining a level of a resonance signal generated by the operating coil and the capacitor circuit, a resonance frequency detecting circuit detecting a resonance frequency signal from the resonance signal generated by the operating coil and the capacitor circuit, and a control circuit configured to control the driving circuit in response to the resonance frequency signal from the resonance frequency detecting circuit.

    LIGHT EMITTING DIODE DRIVING APPARATUS
    6.
    发明申请
    LIGHT EMITTING DIODE DRIVING APPARATUS 有权
    发光二极管驱动装置

    公开(公告)号：US20150115822A1

    公开(公告)日：2015-04-30

    申请号：US14288134

    申请日：2014-05-27

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Sang Hyun CHA ,  Yun Joong LEE ,  Je Hyeon YU

    IPC: H05B33/08

    CPC classification number: H05B33/0815 ,  H05B33/0803 ,  H05B33/0851 ,  H05B41/34 ,  Y02B20/346

    Abstract: A light emitting diode (LED) driving apparatus may include: a power converting unit switching input power to supply driving power to at least one LED; and a driving controlling unit controlling the supplying of the power of the power converting unit based on a switching period of the power converting unit and a demagnetization time in the switching period.

    Abstract translation: 发光二极管（LED）驱动装置可以包括：功率转换单元，切换输入功率以向至少一个LED提供驱动功率; 以及驱动控制单元，其基于所述功率转换单元的切换周期和所述切换时段中的去磁时间来控制所述功率转换单元的功率的供给。

    VOLTAGE CONTROL CIRCUIT FOR DIMMER AND DIMMING METHOD USING THE SAME
    8.
    发明申请
    VOLTAGE CONTROL CIRCUIT FOR DIMMER AND DIMMING METHOD USING THE SAME 有权
    用于调光器的电压控制电路及其使用方法

    公开(公告)号：US20150002041A1

    公开(公告)日：2015-01-01

    申请号：US14146229

    申请日：2014-01-02

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Yun Joong LEE ,  Je Hyeon YU ,  Chang Seok LEE ,  Chan Woo PARK

    IPC: H05B33/08

    CPC classification number: H05B33/0815 ,  H05B33/0851

    Abstract: Disclosed herein is a voltage control circuit for a dimmer and a dimming method. In accordance with an embodiment, the dimming method using a voltage control circuit for a dimmer includes the steps of determining whether a current voltage value input to a constant dimming range maintainer is equal to a preset minimum or maximum voltage value or exists between the minimum and maximum voltage values, and determining whether the current voltage value is greater than the maximum voltage value when the current voltage value isn't equal to the minimum or maximum voltage value or doesn't exist between the minimum and maximum voltage values. The method further includes the steps of updating the minimum voltage value to the current voltage value when the current voltage value isn't greater than the maximum voltage value, and updating the maximum voltage value to the current voltage value when the current voltage value is greater than the maximum voltage value.

    Abstract translation: 本文公开了一种用于调光器和调光方法的电压控制电路。 根据实施例，使用用于调光器的电压控制电路的调光方法包括以下步骤：确定输入到恒定调光范围保持器的当前电压值是否等于预设的最小或最大电压值，或者存在于最小和最小值之间 最大电压值，并且当当前电压值不等于最小或最大电压值或者在最小和最大电压值之间不存在时，确定当前电压值是否大于最大电压值。 该方法还包括当当前电压值不大于最大电压值时将最小电压值更新为当前电压值的步骤，以及当当前电压值较大时将最大电压值更新为当前电压值 超过最大电压值。

    LIGHT EMITTING DIODE LIGHTING APPARATUS AND DRIVING METHOD THEREOF
    9.
    发明申请
    LIGHT EMITTING DIODE LIGHTING APPARATUS AND DRIVING METHOD THEREOF 审中-公开
    发光二极管照明设备及其驱动方法

    公开(公告)号：US20140368119A1

    公开(公告)日：2014-12-18

    申请号：US14026087

    申请日：2013-09-13

    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

    Inventor： Yun Joong LEE ,  Deuk Hee PARK ,  Chan Woo PARK ,  Jong Tae HWANG ,  Je Hyeon YU ,  Soo Hyun MOON ,  Hye Jin LEE ,  Chang Seok LEE ,  Sang Hyun CHA

    IPC: H05B33/08

    CPC classification number: H05B33/0815

    Abstract: There is provide a light emitting diode lighting apparatus capable of being generally used in various kinds of dimmer, the apparatus including: a dimmer varying waveforms of input power according to a dimming signal; a bleeder adjusting a bleeding current under control; a controller comparing a latching current of the dimmer with the bleeding current of the bleeder to control the amount of the bleeding current; and an LED driver receiving a current other than the bleeding current flowing through the bleeder from among the currents from the dimmer to driver a light emitting diode (LED).

    Abstract translation: 本发明提供能够广泛应用于各种调光器的发光二极管照明装置，该装置包括：调光器根据调光信号改变输入功率的波形; 调节出血电流的放电器; 控制器将所述调光器的锁存电流与所述泄放器的所述出血电流进行比较，以控制所述出血电流的量; 以及LED驱动器，其从从调光器到驱动器的发光二极管（LED）的电流中接收流过泄流器的渗流电流以外的电流。

Patent Agency Ranking