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    MATCHING OF GMR SENSORS IN A BRIDGE
    21.
    发明申请
    MATCHING OF GMR SENSORS IN A BRIDGE 有权
    GMR传感器在桥梁中的匹配

    公开(公告)号：US20100283458A1

    公开(公告)日：2010-11-11

    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： G01R33/02

    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。

    MAGNETIC FIELD SENSOR WITH AUTOMATIC SENSITIVITY ADJUSTMENT
    23.
    发明申请
    MAGNETIC FIELD SENSOR WITH AUTOMATIC SENSITIVITY ADJUSTMENT 有权
    具有自动灵敏度调整的磁场传感器

    公开(公告)号：US20090212765A1

    公开(公告)日：2009-08-27

    申请号：US12037393

    申请日：2008-02-26

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

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

    IPC分类号： G01R35/00

    CPC分类号： G01R33/07 ,  G01R33/0023 ,  G01R33/0041

    摘要： Magnetic field sensors have a magnetic field sensing element and also a feedback circuit to provide a gain-adjustment signal to affect a sensitivity associated with the magnetic field sensing element. In some arrangements, the feedback circuit can include piezoresistors to sense a strain of a substrate over which the magnetic field sensor is disposed. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed strain. In other arrangements, the feedback circuit can generate pulsed magnetic fields proximate to the magnetic field sensing element in order to directly measure the sensitivity of the magnetic field sensing element. With these arrangements, the feedback circuit can generate the gain-adjustment signal in accordance with the sensed sensitivity.

    摘要翻译： 磁场传感器具有磁场感测元件以及反馈电路，以提供增益调节信号以影响与磁场感测元件相关联的灵敏度。 在一些布置中，反馈电路可以包括压敏电阻器，用于感测设置有磁场传感器的基板的应变。 利用这些布置，反馈电路可以根据感测的应变产生增益调整信号。 在其他布置中，反馈电路可以产生靠近磁场感测元件的脉冲磁场，以便直接测量磁场感测元件的灵敏度。 利用这些布置，反馈电路可以根据所感测的灵敏度产生增益调整信号。

    Electronic circuit configured to reset a magnetoresistance element
    26.
    发明授权
    Electronic circuit configured to reset a magnetoresistance element 有权
    配置为复位磁阻元件的电子电路

    公开(公告)号：US07973527B2

    公开(公告)日：2011-07-05

    申请号：US12183541

    申请日：2008-07-31

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

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

    IPC分类号： G01R15/18

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

    摘要： An electronic circuit includes a magnetoresistance element for providing an output signal proportional to a magnetic field. The magnetoresistance element also has a hysteresis characteristic. The electronic circuit also includes at least one of a reset conductor or a bias conductor disposed proximate to the magnetoresistance element. For embodiments having a reset conductor, the electronic circuit is configured to generate a reset current carried by the reset conductor in response to the comparison. In response to the reset current, the reset conductor is configured to generate a reset magnetic field at the magnetoresistance element to temporarily force the magnetoresistance element to a saturation region of the hysteresis characteristic.

    摘要翻译： 电子电路包括用于提供与磁场成比例的输出信号的磁阻元件。 磁阻元件也具有滞后特性。 电子电路还包括重置导体或靠近磁阻元件设置的偏置导体中的至少一个。 对于具有复位导体的实施例，电子电路被配置为响应于比较而产生由复位导体承载的复位电流。 响应于复位电流，复位导体被配置为在磁阻元件处产生复位磁场，以暂时将磁阻元件强制到滞后特性的饱和区域。

    Current sensor
    27.
    发明授权
    Current sensor 有权
    电流传感器

    公开(公告)号：US07476816B2

    公开(公告)日：2009-01-13

    申请号：US11401160

    申请日：2006-04-10

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

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

    IPC分类号： H01L23/48

    CPC分类号： G01R1/36 ,  G01R15/202 ,  G01R15/207 ,  G01R33/07 ,  H01L24/37 ,  H01L24/40 ,  H01L2224/32245 ,  H01L2224/37147 ,  H01L2224/40095 ,  H01L2224/40245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/4826 ,  H01L2224/73215 ,  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 lead frame also includes a shunt conductor portion formed as a coupling of the at least two leads.

    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。 引线框架还包括形成为至少两个引线的耦合的并联导体部分。

    Current sensor
    29.
    发明授权
    Current sensor 有权
    电流传感器

    公开(公告)号：US07166807B2

    公开(公告)日：2007-01-23

    申请号：US11144970

    申请日：2005-06-03

    申请人： Jay Gagnon ,  Richard Dickinson ,  Michael C. Doogue ,  Andreas P. Friedrich ,  William P. Taylor

    发明人： Jay Gagnon ,  Richard Dickinson ,  Michael C. Doogue ,  Andreas P. Friedrich ,  William P. Taylor

    IPC分类号： H01L23/495

    CPC分类号： G01R15/207 ,  G01R15/202 ,  H01L24/37 ,  H01L24/40 ,  H01L2224/37147 ,  H01L2224/40095 ,  H01L2224/40245 ,  H01L2224/48091 ,  H01L2224/4826 ,  H01L2224/84801 ,  H01L2924/01322 ,  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 substrate having a first surface in which is disposed one or more magnetic field transducers, with the first surface being proximate 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 relative to a conventional orientation. A current conductor portion can be deposited proximate to a surface of the substrate and proximate to the one or more magnetic field sensors. With this arrangement, a current sensor is provided for which the one or more magnetic field transducers are very close to the current conductor portion, resulting in a current sensor having improved sensitivity. An insulating layer can be disposed between the current conductor portion and the substrate.

    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换能器，其中第一表面接近电流导体部分， 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，相对于传统的方向，衬底在集成电路中被上下颠倒。 电流导体部分可以沉积在衬底的表面附近并且靠近一个或多个磁场传感器。 利用这种布置，提供了一个电流传感器，一个或多个磁场换能器非常接近电流导体部分，导致具有改善的灵敏度的电流传感器。 绝缘层可以设置在电流导体部分和基板之间。

    High accuracy differential current sensor for applications like ground fault interrupters
    30.
    发明授权
    High accuracy differential current sensor for applications like ground fault interrupters 有权
    高精度差动电流传感器，适用于接地故障断路器

    公开(公告)号：US09081041B2

    公开(公告)日：2015-07-14

    申请号：US13439094

    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： G01R33/02 ,  G01R15/20

    CPC分类号： G01R15/207

    摘要： A sensor with multiple magnetic field sensing elements for use in current sensing and other applications is presented. In one configuration, the sensor can obtain differential and absolute current measurements of current in current-carrying conductors. When employed in a ground fault interrupter (GFI) application, a first magnetic field sensing element can be used to measure the absolute current flowing in the phase conductor (phase current), a second magnetic field sensing element can be used to measure the absolute current flowing in the neutral conductor (neutral current) and a difference between the phase and neutral currents can be measured by a third magnetic field sensing element or determined from measurements of the first and second magnetic field sensing elements. In another configuration, the sensor can obtain a measure of the difference between currents and/or the sum of currents in current-carrying conductors.

    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。 在一种配置中，传感器可以获得载流导体中电流的差分和绝对电流测量。 当用于接地故障断续器（GFI）应用时，可以使用第一磁场感测元件来测量在相导体（相电流）中流动的绝对电流，第二磁场感测元件可用于测量绝对电流 在中性导体（中性电流）中流动，并且相电流和中性电流之间的差异可以由第三磁场感测元件测量或者由第一和第二磁场感测元件的测量确定。 在另一种配置中，传感器可以获得电流差和/或载流导体中电流之和的量度。