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    Galvanic isolator
    3.
    发明授权
    Galvanic isolator 有权
    电隔离器

    公开(公告)号：US08385043B2

    公开(公告)日：2013-02-26

    申请号：US12477078

    申请日：2009-06-02

    申请人： Gek Yong Ng ,  Richard A. Baumgartner ,  Julie E. Fouquet

    发明人： Gek Yong Ng ,  Richard A. Baumgartner ,  Julie E. Fouquet

    IPC分类号： H01H9/00

    CPC分类号： H04B5/005 ,  H01F17/0006 ,  H01F17/0013 ,  H01F19/04 ,  H01F19/08 ,  H01F27/2804 ,  H01F27/40 ,  H01F38/14 ,  H01F2019/085 ,  H01L2224/48091 ,  H01L2224/73265 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/45008 ,  H03F2203/45101 ,  H03F2203/45586 ,  H03H7/52 ,  H03H11/265 ,  H04B5/0093 ,  H04L25/0266 ,  H01L2924/00014

    摘要： Galvanic isolators are disclosed herein. An embodiment of a galvanic isolator comprises a generally planar electrically insulating substrate comprising opposing first and second surfaces, the substrate comprising an electrically insulating, low dielectric loss material and having a transmitter coil disposed on the first surface and a receiving coil disposed on the second surface. A transmitter circuit is operably connected to the transmitter coil. The transmitter circuit comprises a first detector that detects a rising edge of an input signal; a first pulse generator that generates a plurality of first pulses upon detection of the rising edge; a second detector that detects a falling edge of the input signal; and a second pulse generator that generates a plurality of second pulses upon detection of the falling edge. A receiver circuit is operably connected to the second receiving coil. The receiver circuit generates a signal that is substantially similar to the input signal based on the first pulses and the second pulses.

    摘要翻译： 本文公开了电隔离器。 电隔离器的实施例包括大体上平面的电绝缘衬底，其包括相对的第一和第二表面，所述衬底包括电绝缘的低介电损耗材料，并且具有布置在第一表面上的发射器线圈和设置在第二表面上的接收线圈 。 发射机电路可操作地连接到发射机线圈。 发射机电路包括检测输入信号的上升沿的第一检测器; 第一脉冲发生器，其在检测到所述上升沿时产生多个第一脉冲; 检测输入信号的下降沿的第二检测器; 以及第二脉冲发生器，其在检测到下降沿时产生多个第二脉冲。 接收器电路可操作地连接到第二接收线圈。 接收器电路基于第一脉冲和第二脉冲产生基本上类似于输入信号的信号。

    GALVANIC ISOLATOR
    4.
    发明申请
    GALVANIC ISOLATOR 有权
    GALVANIC隔离器

    公开(公告)号：US20100020448A1

    公开(公告)日：2010-01-28

    申请号：US12477078

    申请日：2009-06-02

    申请人： Gek Yong Ng ,  Richard A. Baumgartner ,  Julie E. Fouquet

    发明人： Gek Yong Ng ,  Richard A. Baumgartner ,  Julie E. Fouquet

    IPC分类号： G08C19/02 ,  H01F5/02

    CPC分类号： H04B5/005 ,  H01F17/0006 ,  H01F17/0013 ,  H01F19/04 ,  H01F19/08 ,  H01F27/2804 ,  H01F27/40 ,  H01F38/14 ,  H01F2019/085 ,  H01L2224/48091 ,  H01L2224/73265 ,  H03F3/45192 ,  H03F3/45475 ,  H03F2203/45008 ,  H03F2203/45101 ,  H03F2203/45586 ,  H03H7/52 ,  H03H11/265 ,  H04B5/0093 ,  H04L25/0266 ,  H01L2924/00014

    摘要： Galvanic isolators are disclosed herein. An embodiment of a galvanic isolator comprises a generally planar electrically insulating substrate comprising opposing first and second surfaces, the substrate comprising an electrically insulating, low dielectric loss material and having a transmitter coil disposed on the first surface and a receiving coil disposed on the second surface. A transmitter circuit is operably connected to the transmitter coil. The transmitter circuit comprises a first detector that detects a rising edge of an input signal; a first pulse generator that generates a plurality of first pulses upon detection of the rising edge; a second detector that detects a falling edge of the input signal; and a second pulse generator that generates a plurality of second pulses upon detection of the falling edge. A receiver circuit is operably connected to the second receiving coil. The receiver circuit generates a signal that is substantially similar to the input signal based on the first pulses and the second pulses.

    摘要翻译： 本文公开了电隔离器。 电隔离器的实施例包括大体上平面的电绝缘衬底，其包括相对的第一和第二表面，所述衬底包括电绝缘的低介电损耗材料，并且具有布置在第一表面上的发射器线圈和设置在第二表面上的接收线圈 。 发射机电路可操作地连接到发射机线圈。 发射机电路包括检测输入信号的上升沿的第一检测器; 第一脉冲发生器，其在检测到所述上升沿时产生多个第一脉冲; 检测输入信号的下降沿的第二检测器; 以及第二脉冲发生器，其在检测到下降沿时产生多个第二脉冲。 接收器电路可操作地连接到第二接收线圈。 接收器电路基于第一脉冲和第二脉冲产生基本上类似于输入信号的信号。

    Wake-Up Circuits, Devices and Methods for Galvanic Isolators
    5.
    发明申请
    Wake-Up Circuits, Devices and Methods for Galvanic Isolators 有权
    唤醒电路，电阻隔离器的装置和方法

    公开(公告)号：US20100329363A1

    公开(公告)日：2010-12-30

    申请号：US12491354

    申请日：2009-06-25

    申请人： Gek Yong Ng ,  Peng Siang Seet ,  Fun Kok Chow

    发明人： Gek Yong Ng ,  Peng Siang Seet ,  Fun Kok Chow

    IPC分类号： H04B3/00

    CPC分类号： H04B3/00 ,  H04L12/12 ,  Y02D50/40

    摘要： According to one embodiment, there is provided a method of reducing the amount of power consumed by a galvanic isolator. A transmitter transmits a wake-up signal to a receiver located across an isolation medium when the transmitter is ready or preparing to transmit data or power signals to a receiver, which is operably connected to a sensing circuit. The sensing circuit receives the wake-up signal through the isolation medium, which may be operably connected to and powered substantially continuously or intermittently by a first power source. In response to the sensing circuit receiving the wake-up signal, the receiver is powered up from a sleep mode to an operating mode. After a period of time tRDY has passed since the wake-up signal was transmitted, a signature pattern is transmitted from the transmitter to the sensing circuit through the isolation medium. Next, the sensing circuit or the receiver verifies the validity of the signature pattern. If the signature pattern is determined at to be valid, the receiver is enabled to receive the data or power signals from the transmitter. The transmitter then transmits the data or power signals from the transmitter through the isolation medium to the receiver.

    摘要翻译： 根据一个实施例，提供了一种减少电流隔离器消耗的功率量的方法。 当发射机准备就绪或准备将数据或功率信号发射到可操作地连接到感测电路的接收机时，发射机将唤醒信号发射到位于隔离介质两端的接收器。 感测电路通过隔离介质接收唤醒信号，该隔离介质可以由第一电源可操作地连接到基本连续或间歇地供电。 响应于感测电路接收到唤醒信号，接收机从睡眠模式上电到操作模式。 在发送唤醒信号后经过一段时间tRDY后，通过隔离介质从发射机向感测电路发送签名模式。 接下来，感测电路或接收器验证签名图案的有效性。 如果签名模式被确定为有效，则接收器被允许从发射机接收数据或功率信号。 然后，发射机通过隔离介质将数据或功率信号从发射机发射到接收机。

    Optical proximity sensor with improved dynamic range and sensitivity
    7.
    发明授权
    Optical proximity sensor with improved dynamic range and sensitivity 有权
    光学接近传感器具有改善的动态范围和灵敏度

    公开(公告)号：US08692200B2

    公开(公告)日：2014-04-08

    申请号：US12652912

    申请日：2010-01-06

    申请人： Qian Tao ,  Gek Yong Ng ,  Richard Lum

    发明人： Qian Tao ,  Gek Yong Ng ,  Richard Lum

    IPC分类号： G01J5/20

    CPC分类号： G01J1/46 ,  G01J1/28 ,  G01J5/08 ,  G01J5/0896 ,  G01J5/20

    摘要： Various embodiments of an optical proximity sensor and corresponding circuits and methods for measuring small AC signal currents arising from the detection of pulsed AC light signals emitted by a light emitter and reflected from an object to detected in the presence of larger ambient light DC current signals are disclosed. Circuits and corresponding methods are described that improve the dynamic range, sensitivity and detection range of an optical proximity sensor by cancelling the contributions of DC current signals arising from ambient light signals that otherwise would dominate the detected small AC signal currents. The DC signal cancellation occurs in a differential amplifier circuit before small AC signal currents are provided to an analog-to-digital converter. The circuits and methods may be implemented using conventional CMOS design and manufacturing techniques and processes.

    摘要翻译： 光接近传感器的各种实施例以及相应的电路和方法，用于测量由在较大的环境光直流电流信号的存在下由光发射器发射并从物体反射以检测的脉冲AC光信号产生的小AC信号电流， 披露 描述了通过消除由环境光信号产生的DC电流信号的贡献来改善光学接近传感器的动态范围，灵敏度和检测范围的电路和相应方法，否则将主导检测到的小AC信号电流。 在将小的AC信号电流提供给模数转换器之前，在差分放大器电路中发生DC信号消除。 电路和方法可以使用传统的CMOS设计和制造技术和工艺来实现。

    Optical Proximity Sensor with Improved Dynamic Range and Sensitivity
    8.
    发明申请
    Optical Proximity Sensor with Improved Dynamic Range and Sensitivity 有权
    具有改进的动态范围和灵敏度的光学接近传感器

    公开(公告)号：US20110163233A1

    公开(公告)日：2011-07-07

    申请号：US12652912

    申请日：2010-01-06

    申请人： Gek Yong Ng ,  Qian Tao ,  Richard Lum

    发明人： Gek Yong Ng ,  Qian Tao ,  Richard Lum

    IPC分类号： G01J5/20

    CPC分类号： G01J1/46 ,  G01J1/28 ,  G01J5/08 ,  G01J5/0896 ,  G01J5/20

    摘要： Various embodiments of an optical proximity sensor and corresponding circuits and methods for measuring small AC signal currents arising from the detection of pulsed AC light signals emitted by a light emitter and reflected from an object to detected in the presence of larger ambient light DC current signals are disclosed. Circuits and corresponding methods are described that improve the dynamic range, sensitivity and detection range of an optical proximity sensor by cancelling the contributions of DC current signals arising from ambient light signals that otherwise would dominate the detected small AC signal currents. The DC signal cancellation occurs in a differential amplifier circuit before small AC signal currents are provided to an analog-to-digital converter The circuits and methods may be implemented using conventional CMOS design and manufacturing techniques and processes.

    摘要翻译： 光接近传感器的各种实施例以及相应的电路和方法，用于测量由在较大的环境光直流电流信号的存在下由光发射器发射并从物体反射以检测的脉冲AC光信号产生的小AC信号电流， 披露 描述了通过消除由环境光信号产生的DC电流信号的贡献来改善光学接近传感器的动态范围，灵敏度和检测范围的电路和相应方法，否则将主导检测到的小AC信号电流。 在将小的AC信号电流提供给模数转换器之前，在差分放大器电路中发生DC信号消除。电路和方法可以使用传统的CMOS设计和制造技术和工艺来实现。

    High voltage drive circuit employing capacitive signal coupling and associated devices and methods
    9.
    发明授权
    High voltage drive circuit employing capacitive signal coupling and associated devices and methods 有权
    采用电容式信号耦合的高压驱动电路及相关器件及方法

    公开(公告)号：US07741896B2

    公开(公告)日：2010-06-22

    申请号：US12163275

    申请日：2008-06-27

    申请人： Fun Kok Chow ,  Gek Yong Ng ,  Richard Kok Keong Lum

    发明人： Fun Kok Chow ,  Gek Yong Ng ,  Richard Kok Keong Lum

    IPC分类号： H03K17/687

    CPC分类号： H04L25/0266 ,  H01L23/48 ,  H01L23/5223 ,  H01L23/642 ,  H01L27/0248 ,  H01L28/40 ,  H01L28/60 ,  H01L2224/48137 ,  H01L2224/49175 ,  H01L2924/1305 ,  H01L2924/13055 ,  H01L2924/13091 ,  H01L2924/00

    摘要： According to one embodiment, there is provided a high voltage drive circuit comprising drive and sense electrodes formed substantially in a single plane. The device effects signal transfer between drive and receive circuits through the drive and sense electrodes by capacitive means, and permits high voltage devices, such as IGBTs, to be driven thereby without the use of high voltage transistors, thereby eliminating the need to use expensive fabrication processes such as SOI when manufacturing high voltage gate drive circuits and ICs. The device may be formed in a small package using, by way of example, using CMOS or other conventional low-cost semiconductor fabrication and packaging processes.

    摘要翻译： 根据一个实施例，提供了一种高压驱动电路，其包括基本上在单个平面中形成的驱动和感测电极。 该器件通过电容方式通过驱动和感测电极来影响驱动和接收电路之间的信号传输，并且允许诸如IGBT之类的高电压器件由此驱动，而不需要使用高压晶体管，从而无需使用昂贵的制造 制造高压栅极驱动电路和IC时的SOI等工艺。 例如，可以使用CMOS或其它常规的低成本半导体制造和封装工艺，将器件形成为小封装。

    Wake-up circuits, devices and methods for galvanic isolators
    10.
    发明授权
    Wake-up circuits, devices and methods for galvanic isolators 有权
    唤醒电路，电隔离器的装置和方法

    公开(公告)号：US08629714B2

    公开(公告)日：2014-01-14

    申请号：US12491354

    申请日：2009-06-25

    申请人： Gek Yong Ng ,  Peng Siang Seet ,  Fun Kok Chow

    发明人： Gek Yong Ng ,  Peng Siang Seet ,  Fun Kok Chow

    IPC分类号： G05F1/10

    CPC分类号： H04B3/00 ,  H04L12/12 ,  Y02D50/40

    摘要： According to one embodiment, there is provided a method of reducing the amount of power consumed by a galvanic isolator. A transmitter transmits a wake-up signal to a receiver located across an isolation medium when the transmitter is ready or preparing to transmit data or power signals to a receiver, which is operably connected to a sensing circuit. The sensing circuit receives the wake-up signal through the isolation medium, which may be operably connected to and powered substantially continuously or intermittently by a first power source. In response to the sensing circuit receiving the wake-up signal, the receiver is powered up from a sleep mode to an operating mode. After a period of time tRDY has passed since the wake-up signal was transmitted, a signature pattern is transmitted from the transmitter to the sensing circuit through the isolation medium. Next, the sensing circuit or the receiver verifies the validity of the signature pattern. If the signature pattern is determined at to be valid, the receiver is enabled to receive the data or power signals from the transmitter. The transmitter then transmits the data or power signals from the transmitter through the isolation medium to the receiver.

    摘要翻译： 根据一个实施例，提供了一种减少电流隔离器消耗的功率量的方法。 当发射机准备就绪或准备将数据或功率信号发射到可操作地连接到感测电路的接收机时，发射机将唤醒信号发射到位于隔离介质两端的接收器。 感测电路通过隔离介质接收唤醒信号，该隔离介质可以由第一电源可操作地连接到基本连续或间歇地供电。 响应于感测电路接收到唤醒信号，接收机从睡眠模式上电到操作模式。 在发送唤醒信号后经过一段时间tRDY后，通过隔离介质从发射机向感测电路发送签名模式。 接下来，感测电路或接收器验证签名图案的有效性。 如果签名模式被确定为有效，则接收器被允许从发射机接收数据或功率信号。 然后，发射机通过隔离介质将数据或功率信号从发射机发射到接收机。