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    Magnetic field sensor having multiple sensing elements and a programmable misalignment adjustment device for misalignment detection and correction in current sensing and other applications
    31.
    发明授权
    Magnetic field sensor having multiple sensing elements and a programmable misalignment adjustment device for misalignment detection and correction in current sensing and other applications 有权
    具有多个感测元件的磁场传感器和用于电流检测和其他应用中的未对准检测和校正的可编程的未对准调整装置

    公开(公告)号：US08896295B2

    公开(公告)日：2014-11-25

    申请号：US13439074

    申请日：2012-04-04

    申请人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    发明人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    IPC分类号： G01B7/14

    CPC分类号： G01R33/0094 ,  G01R15/207 ,  H01L43/06 ,  H01L43/065 ,  H01L43/08

    摘要： A sensor with multiple magnetic field sensing elements for use in current sensing and other applications is presented. The sensor includes an arrangement of two or more magnetic field sensing elements to sense magnetic field associated with a target. The sensor further includes circuitry to generate a sensor output signal based on sensing of at least one of the magnetic field sensing elements of the arrangement. Also included is a programmable misalignment adjustment block to control the circuitry to generate the output signal with compensation for misalignment between the sensor and the target. The programmable misalignment adjustment block can be programmed to select measurement of one of the two or more magnetic field sensing elements, or alternatively, a mathematical combination of measurements of the two or more magnetic field sensing elements, for generating the sensor output signal when a test of the sensor indicates a misalignment.

    摘要翻译： 提出了一种用于电流检测和其他应用的具有多个磁场感测元件的传感器。 传感器包括两个或更多个磁场感测元件的布置，用于感测与目标相关联的磁场。 该传感器还包括基于感测该装置的磁场感测元件中的至少一个来产生传感器输出信号的电路。 还包括可编程的未对准调整块，以控制电路以产生输出信号，并补偿传感器和目标之间的未对准。 可编程的未对准调整块可以被编程以选择两个或更多个磁场感测元件中的一个的测量，或者替代地，两个或更多个磁场感测元件的测量的数学组合，用于当测试时产生传感器输出信号 的传感器表示未对准。

    ANGLE SENSOR WITH MISALIGNMENT DETECTION AND CORRECTION
    32.
    发明申请
    ANGLE SENSOR WITH MISALIGNMENT DETECTION AND CORRECTION 有权
    具有误差检测和校正的角度传感器

    公开(公告)号：US20130265037A1

    公开(公告)日：2013-10-10

    申请号：US13439082

    申请日：2012-04-04

    申请人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    发明人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    IPC分类号： G01B7/30 ,  G01R33/09 ,  G01R33/07

    CPC分类号： G01R33/0094 ,  G01D3/028 ,  G01R33/07 ,  G01R33/09

    摘要： An angle sensor to provide sensor-to-magnet misalignment detection and correction capability in rotation angle measurement applications is presented. The angle sensor has magnetic field sensing elements to sense magnetic field associated with a rotating magnet. The angle sensor includes circuitry to generate signals based on the sensing by the sensing elements. The signals provide information that can be combined according to an error function to provide misalignment detection. The angle sensor can be used with or can be incorporated in an angle measurement device that employs a processing unit to produce a rotation angle value. In one embodiment, the processing unit is configured to implement the error function and correct the angle value for detected misalignment. In another embodiment, the error function is performed by a programming device and detected misalignment is corrected through mechanical adjustment of sensor-to-magnet position.

    摘要翻译： 提出了一种角度传感器，用于在旋转角度测量应用中提供传感器到磁体的未对准检测和校正能力。 角度传感器具有用于感测与旋转磁体相关联的磁场的磁场感测元件。 角度传感器包括基于感测元件的感测产生信号的电路。 信号提供可以根据误差函数组合以提供不对准检测的信息。 该角度传感器可以与采用加工单元产生旋转角度值的角度测量装置结合使用或者可以并入其中。 在一个实施例中，处理单元被配置为实现误差函数并校正检测到的未对准的角度值。 在另一个实施例中，误差函数由编程装置执行，并且通过传感器到磁体位置的机械调节来校正检测到的未对准。

    MAGNETIC FIELD SENSOR HAVING MULTIPLE SENSING ELEMENTS FOR MISALIGNMENT DETECTION AND CORRECTION IN CURRENT SENSING AND OTHER APPLICATIONS
    33.
    发明申请
    MAGNETIC FIELD SENSOR HAVING MULTIPLE SENSING ELEMENTS FOR MISALIGNMENT DETECTION AND CORRECTION IN CURRENT SENSING AND OTHER APPLICATIONS 有权
    具有多种传感元件的磁场传感器用于电流传感和其他应用中的误差检测和校正

    公开(公告)号：US20130265036A1

    公开(公告)日：2013-10-10

    申请号：US13439074

    申请日：2012-04-04

    申请人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    发明人： Andreas P. Friedrich ,  Andrea Foletto ,  P. Karl Scheller ,  William P. Taylor ,  Michael C. Doogue

    IPC分类号： H01L43/06 ,  G01B7/14

    CPC分类号： G01R33/0094 ,  G01R15/207 ,  H01L43/06 ,  H01L43/065 ,  H01L43/08

    摘要： A sensor with multiple magnetic field sensing elements for use in current sensing and other applications is presented. The sensor includes an arrangement of two or more magnetic field sensing elements to sense magnetic field associated with a target. The sensor further includes circuitry to generate a sensor output signal based on sensing of at least one of the magnetic field sensing elements of the arrangement. Also included is a programmable misalignment adjustment block to control the circuitry to generate the output signal with compensation for misalignment between the sensor and the target. The programmable misalignment adjustment block can be programmed to select measurement of one of the two or more magnetic field sensing elements, or alternatively, a mathematical combination of measurements of the two or more magnetic field sensing elements, for generating the sensor output signal when a test of the sensor indicates a misalignment.

    摘要翻译： 提出了一种用于电流检测和其他应用的具有多个磁场感测元件的传感器。 传感器包括两个或更多个磁场感测元件的布置，用于感测与目标相关联的磁场。 该传感器还包括基于感测该装置的磁场感测元件中的至少一个来产生传感器输出信号的电路。 还包括可编程的未对准调整块，以控制电路以产生输出信号，并补偿传感器和目标之间的未对准。 可编程的未对准调整块可以被编程以选择两个或更多个磁场感测元件中的一个的测量，或者替代地，两个或更多个磁场感测元件的测量的数学组合，用于当测试时产生传感器输出信号 的传感器表示未对准。

    Magnetic Field Sensor Integrated Circuit with Integral Ferromagnetic Material
    34.
    发明申请
    Magnetic Field Sensor Integrated Circuit with Integral Ferromagnetic Material 审中-公开
    具有积分铁磁材料的磁场传感器集成电路

    公开(公告)号：US20130249544A1

    公开(公告)日：2013-09-26

    申请号：US13424618

    申请日：2012-03-20

    申请人： Ravi Vig ,  William P. Taylor ,  Andreas P. Friedrich ,  Paul David ,  Marie-Adelaide Lo ,  Eric Burdette ,  Eric Shoemaker ,  Michael C. Doogue

    发明人： Ravi Vig ,  William P. Taylor ,  Andreas P. Friedrich ,  Paul David ,  Marie-Adelaide Lo ,  Eric Burdette ,  Eric Shoemaker ,  Michael C. Doogue

    IPC分类号： G01R33/02

    CPC分类号： G01R33/0047 ,  G01B7/30 ,  G01R33/0011

    摘要： A magnetic field sensor includes a lead frame, a semiconductor die supporting a magnetic field sensing element, a non-conductive mold material enclosing the die and a portion of the lead frame, a ferromagnetic mold material secured to the non-conductive mold material and a securing mechanism to securely engage the mold materials. The ferromagnetic mold material may comprise a soft ferromagnetic material to form a concentrator or a hard ferromagnetic material to form a bias magnet. The ferromagnetic mold material may be tapered and includes a non-contiguous central region, as may be an aperture or may contain the non-conductive mold material or an overmold material. Further embodiments include die up, lead on chip, and flip-chip arrangements, wafer level techniques to form the concentrator or bias magnet, integrated components, such as capacitors, on the lead frame, and a bias magnet with one or more channels to facilitate overmolding.

    摘要翻译： 磁场传感器包括引线框架，支撑磁场感测元件的半导体管芯，封装模具的非导电模具材料和引线框架的一部分，固定到非导电模具材料的铁磁模具材料和 固定机构可牢固地接合模具材料。 铁磁模具材料可以包括软铁磁材料以形成集中器或硬铁磁材料以形成偏置磁体。 铁磁模具材料可以是锥形的并且包括不连续的中心区域，可以是孔或可以包含非导电模具材料或包覆模制材料。 另外的实施例包括裸片，片上芯片和倒装芯片布置，用于形成集中器或偏置磁体的晶片级技术，引线框架上的诸如电容器之类的集成部件，以及具有一个或多个通道的偏置磁体，以便于 包覆成型

    Folding current sensor
    35.
    发明授权
    Folding current sensor 有权
    折叠电流传感器

    公开(公告)号：US07936164B2

    公开(公告)日：2011-05-03

    申请号：US12167681

    申请日：2008-07-03

    申请人： Michael C. Doogue ,  William P. Taylor ,  Richard Dickinson

    发明人： Michael C. Doogue ,  William P. Taylor ,  Richard Dickinson

    IPC分类号： G01R1/20 ,  G01R15/20 ,  G01R33/07

    CPC分类号： G01R15/207

    摘要： The invention provides a current sensor that may be folded over a conductor without the need to sever the conductor or thread the conductor through the current sensor. In one embodiment, the current sensor includes an outer body having a first folding portion and a second folding portion coupled to the first folding portion. The current sensor also includes a soft ferromagnetic body disposed within the outer body comprising a first core element and a second core element. The first and second core elements form a lumen when the first and second folding portions are folded. The lumen is configured to receive a conductor. The current sensor also includes a magnetic field detector to sense a current in the conductor. The magnetic field detector is disposed at least partially between the first and second core elements when the first and second folding portions are folded.

    摘要翻译： 本发明提供一种可以在导体上折叠的电流传感器，而不需要切断导体或将导体穿过电流传感器。 在一个实施例中，电流传感器包括具有第一折叠部分和耦合到第一折叠部分的第二折叠部分的外部主体。 电流传感器还包括设置在外体内的软铁磁体，其包括第一芯元件和第二芯元件。 当折叠第一和第二折叠部分时，第一和第二芯元件形成内腔。 管腔被配置为接收导体。 电流传感器还包括用于感测导体中的电流的磁场检测器。 当第一和第二折叠部分被折叠时，磁场检测器至少部分地设置在第一和第二芯元件之间。

    Matching of GMR sensors in a bridge
    36.
    发明授权
    Matching of GMR sensors in a bridge 有权
    桥梁中GMR传感器的匹配

    公开(公告)号：US07859255B2

    公开(公告)日：2010-12-28

    申请号：US12840717

    申请日：2010-07-21

    申请人： Michael C. Doogue ,  William P. Taylor

    发明人： Michael C. Doogue ,  William P. Taylor

    IPC分类号： G01B7/30 ,  G01R33/09

    CPC分类号： G01R33/093 ,  B82Y25/00 ,  G01R15/205

    摘要： A magnetoresistive (MR) sensing device includes MR elements electrically connected to form a bridge circuit and one or more non-functional (or “dummy”) MR elements for improved matching of the bridge circuit MR elements.

    摘要翻译： 磁阻（MR）感测装置包括电连接以形成桥接电路和一个或多个非功能（或“虚拟”）MR元件的MR元件，用于改善桥接电路MR元件的匹配。

    Current sensor
    40.
    发明授权
    Current sensor 有权
    电流传感器

    公开(公告)号：US07075287B1

    公开(公告)日：2006-07-11

    申请号：US11336602

    申请日：2006-01-20

    申请人： Vijay Mangtani ,  Michael C. Doogue ,  William P. Taylor

    发明人： Vijay Mangtani ,  Michael C. Doogue ,  William P. Taylor

    IPC分类号： G01R33/00

    CPC分类号： G01R15/202 ,  G01R1/36 ,  G01R15/207 ,  H01L24/37 ,  H01L24/40 ,  H01L2224/37147 ,  H01L2224/40095 ,  H01L2224/40245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73221 ,  H01L2224/84801 ,  H01L2224/8485 ,  H01L2924/01322 ,  H01L2924/1306 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00 ,  H01L2924/00012

    摘要： An integrated circuit current sensor includes a lead frame having at least two leads coupled to provide a current conductor portion, and a substrate having a first surface in which is disposed one or more magnetic field sensing elements, with the first surface being proximate to the current conductor portion and a second surface distal from the current conductor portion. In one particular embodiment, the substrate is disposed having the first surface of the substrate above the current conductor portion and the second surface of the substrate above the first surface. In this particular embodiment, the substrate is oriented upside-down in the integrated circuit in a flip-chap arrangement. The integrated circuit includes an overcurrent circuit responsive to a voltage drop generated by a current.

    摘要翻译： 集成电路电流传感器包括具有耦合以提供电流导体部分的至少两个引线的引线框架，以及具有第一表面的基板，其中设置有一个或多个磁场感测元件，其中第一表面接近电流 导体部分和远离电流导体部分的第二表面。 在一个具体实施例中，衬底被布置成具有衬底的第一表面在电流导体部分上方，衬底的第二表面在第一表面之上。 在该特定实施例中，衬底在倒装芯片布置中在集成电路中上下颠倒。 集成电路包括响应于由电流产生的电压降的过电流电路。