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1. 发明授权

US07166807B2 Current sensor 有权
标题翻译：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。

2. 发明申请

US20130265041A1 HIGH ACCURACY DIFFERENTIAL CURRENT SENSOR FOR APPLICATIONS LIKE GROUND FAULT INTERRUPTERS 有权
标题翻译：高精度差分电流传感器应用类似接地故障中断
公开(公告)号：US20130265041A1
公开(公告)日：2013-10-10
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： G01R19/00
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。

3. 发明授权

US10234513B2 Magnetic field sensor integrated circuit with integral ferromagnetic material 有权
公开(公告)号：US10234513B2
公开(公告)日：2019-03-19
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 , G01B7/30 , G01R33/00
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.

4. 发明授权

US09007054B2 Angle sensor with misalignment detection and correction 有权
标题翻译：角度传感器具有不对准检测和校正功能
公开(公告)号：US09007054B2
公开(公告)日：2015-04-14
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： G01R33/00 , G01R33/07 , G01R33/09 , G01D3/028
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。

5. 发明申请

US20130134965A1 Circuits and Methods for Generating a Self-Test of a Magnetic Field Sensor 有权
标题翻译：用于产生磁场传感器自检的电路和方法
公开(公告)号：US20130134965A1
公开(公告)日：2013-05-30
申请号：US13743451
申请日：2013-01-17
申请人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
发明人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
IPC分类号： G01R35/00
CPC分类号： G01R33/0035 , G01R33/0023 , G01R35/005
摘要： A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation.
摘要翻译：磁场传感器包括内置的自检电路，其允许对磁场传感器的电路的大部分或全部进行自检，包括在磁场传感器内使用的磁场感测元件的自检，同时磁场传感器正常工作。

6. 发明申请

US20100211347A1 Circuits and Methods for Generating a Self-Test of a Magnetic Field Sensor 有权
标题翻译：用于产生磁场传感器自检的电路和方法
公开(公告)号：US20100211347A1
公开(公告)日：2010-08-19
申请号：US12706318
申请日：2010-02-16
申请人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
发明人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
IPC分类号： G06F19/00 , G01R35/00 , G01R33/00
CPC分类号： G01R33/0035 , G01R33/0023 , G01R35/005
摘要： A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation.
摘要翻译：磁场传感器包括内置的自检电路，其允许对磁场传感器的电路的大部分或全部进行自检，包括在磁场传感器内使用的磁场感测元件的自检，同时磁场传感器正常工作。

7. 发明授权

US08447556B2 Circuits and methods for generating a self-test of a magnetic field sensor 有权
公开(公告)号：US08447556B2
公开(公告)日：2013-05-21
申请号：US12706318
申请日：2010-02-16
申请人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
发明人： Andreas P. Friedrich , Andrea Foletto , Michael C. Doogue , William P. Taylor , Ravi Vig , P. Karl Scheller
IPC分类号： G01R31/00
CPC分类号： G01R33/0035 , G01R33/0023 , G01R35/005
摘要： A magnetic field sensor includes built in self-test circuits that allow a self-test of most of, or all of, the circuitry of the magnetic field sensor, including self-test of a magnetic field sensing element used within the magnetic field sensor, while the magnetic field sensor is functioning in normal operation.

8. 发明授权

US09081041B2 High accuracy differential current sensor for applications like ground fault interrupters 有权
标题翻译：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。

9. 发明授权

US08896295B2 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
标题翻译：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。

10. 发明申请

US20130265037A1 ANGLE SENSOR WITH MISALIGNMENT DETECTION AND CORRECTION 有权
标题翻译：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。

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