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1.发明授权公开(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。
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2.发明申请公开(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。
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公开(公告)号：US08436709B2
公开(公告)日：2013-05-07
申请号：US12984565
申请日：2011-01-04
IPC分类号： H01F5/00
CPC分类号： H01F19/08 , H01F17/0006 , H01F17/0013 , H01F27/2804 , H01F27/40 , H01F2019/085 , H01L2224/48091 , H01L2224/48195 , H01L2224/49175 , H01L2924/3011 , H01L2924/30111 , H03F3/45192 , H03F3/45475 , H03F2203/45008 , H03F2203/45101 , H03F2203/45586 , H03H7/52 , H04L25/0266 , Y10T29/4902 , H01L2924/00014 , H01L2924/00
摘要： Disclosed herein are various embodiments of coil transducers and galvanic isolators configured to provide high voltage isolation and high voltage breakdown performance characteristics in small packages. A coil transducer is provided across which data or power signals may be transmitted and received by primary and secondary coils disposed on opposing sides thereof without high voltage breakdowns occurring therebetween. At least portions of the coil transducer are formed of an electrically insulating, non-metallic, non-semiconductor, low dielectric loss material. Circuits are disclosed herein that permit high speed data signals to be transmitted through the coil transducer and faithfully and accurately reconstructed on the opposing side thereof. The coil transducer may be formed in a small package using, by way of example, printed circuit board, CMOS and other fabrication and packaging processes.
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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
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。
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公开(公告)号：US20090206960A1
公开(公告)日：2009-08-20
申请号：US12397254
申请日：2009-03-03
申请人： Gek Yong Ng , Fun Kok Chow , Kah Weng Lee
发明人： Gek Yong Ng , Fun Kok Chow , Kah Weng Lee
CPC分类号： H04L5/14 , H01L23/48 , H01L23/5223 , H01L23/642 , H01L24/48 , H01L27/0248 , H01L28/60 , H01L2224/05554 , H01L2224/48091 , H01L2224/48137 , H01L2224/484 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01014 , H01L2924/01019 , H01L2924/01023 , H01L2924/01029 , H01L2924/01033 , H01L2924/01047 , H01L2924/0105 , H01L2924/01074 , H01L2924/01079 , H01L2924/01082 , H01L2924/12043 , H01L2924/14 , H01L2924/19041 , H01L2924/3011 , H04L25/0266 , Y10T29/49117 , H01L2224/45099 , H01L2924/00 , H01L2224/85399 , H01L2224/05599
摘要： According to one embodiment, there is provided a high voltage isolation dual capacitor communication system comprising communication drive and sense electrodes and corresponding first and second capacitors that are formed in two separate devices. The two devices are electrically connected in series to provide a single galvanicly-isolated communication system that exhibits high breakdown voltage performance in combination with good signal coupling. The system effects communications between drive and receive circuits through the first and second capacitors, and in a preferred embodiment is capable of effecting relatively high-speed digital communications. The system may be formed in a small package using, by way of example, CMOS or other semiconductor fabrication and packaging processes.
摘要翻译： 根据一个实施例，提供了一种高电压隔离双电容器通信系统，其包括形成在两个分开的装置中的通信驱动和感测电极以及对应的第一和第二电容器。 两个器件串联电连接以提供单个电隔离通信系统，其具有高的击穿电压性能以及良好的信号耦合。 该系统通过第一和第二电容器实现驱动和接收电路之间的通信，并且在优选实施例中能够实现相对高速的数字通信。 该系统可以使用例如CMOS或其他半导体制造和封装工艺以小封装形成。
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6.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。
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公开(公告)号：US09019057B2
公开(公告)日：2015-04-28
申请号：US12059979
申请日：2008-03-31
IPC分类号： H01F5/00 , H01F27/06 , H01F27/30 , H01F27/28 , H01F19/08 , H03F3/45 , H03H7/52 , H04L25/02 , H01F17/00 , H01F27/40
CPC分类号： H01F19/08 , H01F17/0006 , H01F17/0013 , H01F27/2804 , H01F27/40 , H01F2019/085 , H01L2224/48091 , H01L2224/48195 , H01L2224/49175 , H01L2924/3011 , H01L2924/30111 , H03F3/45192 , H03F3/45475 , H03F2203/45008 , H03F2203/45101 , H03F2203/45586 , H03H7/52 , H04L25/0266 , Y10T29/4902 , H01L2924/00014 , H01L2924/00
摘要： Disclosed herein are various embodiments of coil transducers and galvanic isolators configured to provide high voltage isolation and high voltage breakdown performance characteristics in small packages. A coil transducer is provided across which data or power signals may be transmitted and received by primary and secondary coils disposed on opposing sides thereof without high voltage breakdowns occurring therebetween. At least portions of the coil transducer are formed of an electrically insulating, non-metallic, non-semiconductor, low dielectric loss material. Circuits are disclosed herein that permit high speed data signals to be transmitted through the coil transducer and faithfully and accurately reconstructed on the opposing side thereof. The coil transducer may be formed in a small package using, by way of example, printed circuit board, CMOS and other fabrication and packaging processes.
摘要翻译： 本文公开了线圈换能器和电流隔离器的各种实施例，其被配置为在小封装中提供高电压隔离和高电压击穿性能特性。 提供线圈换能器，数据或功率信号可以通过其设置在其相对侧上的主要和次要线圈传输和接收，而其间发生高压击穿。 线圈换能器的至少部分由电绝缘的非金属非半导体低介电损耗材料形成。 本文公开了允许高速数据信号通过线圈换能器传输并在其相对侧上忠实且精确地重建的电路。 线圈传感器可以使用例如印刷电路板，CMOS和其它制造和封装工艺形成为小封装。
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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
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。
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9.发明授权公开(公告)号：US08462003B2
公开(公告)日：2013-06-11
申请号：US12886672
申请日：2010-09-21
申请人： Gek Yong Ng , Richard Kok Keong Lum
发明人： Gek Yong Ng , Richard Kok Keong Lum
IPC分类号： G08B21/00
CPC分类号： H04B10/802 , H05B33/0815 , H05B33/0851 , H05B33/0887
摘要： Various embodiments of systems for transmitting and receiving digital and analog signals across a single isolator, solid state lighting systems, and DC/DC converter feedback regulation control systems are disclosed. At least some of the circuits, systems and methods disclosed herein may be implemented using conventional CMOS design and manufacturing techniques and processes to provide, for example, a single integrated circuit or ASIC.
摘要翻译： 公开了用于在单个隔离器，固态照明系统和DC / DC转换器反馈调节控制系统中发送和接收数字和模拟信号的系统的各种实施例。 本文公开的至少一些电路，系统和方法可以使用传统的CMOS设计和制造技术和工艺来实现，以提供例如单个集成电路或ASIC。
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10.发明申请公开(公告)号：US20120068614A1
公开(公告)日：2012-03-22
申请号：US12886672
申请日：2010-09-21
申请人： Gek Yong Ng , Richard Kok Keong Lum
发明人： Gek Yong Ng , Richard Kok Keong Lum
CPC分类号： H04B10/802 , H05B33/0815 , H05B33/0851 , H05B33/0887
摘要： Various embodiments of systems for transmitting and receiving digital and analog signals across a single isolator, solid state lighting systems, and DC/DC converter feedback regulation control systems are disclosed. At least some of the circuits, systems and methods disclosed herein may be implemented using conventional CMOS design and manufacturing techniques and processes to provide, for example, a single integrated circuit or ASIC.
摘要翻译： 公开了用于在单个隔离器，固态照明系统和DC / DC转换器反馈调节控制系统中发送和接收数字和模拟信号的系统的各种实施例。 本文公开的至少一些电路，系统和方法可以使用传统的CMOS设计和制造技术和工艺来实现，以提供例如单个集成电路或ASIC。
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