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1. 发明申请

US20090019330A1 INTEGRATED CIRCUIT HAVING BUILT-IN SELF-TEST FEATURES 有权
标题翻译：具有内置自检功能的集成电路
公开(公告)号：US20090019330A1
公开(公告)日：2009-01-15
申请号：US11777406
申请日：2007-07-13
申请人： Andreas P. Friedrich , Andrea Foletto , P. Karl Scheller , Paul David
发明人： Andreas P. Friedrich , Andrea Foletto , P. Karl Scheller , Paul David
IPC分类号： G01R31/28
CPC分类号： G01R31/318511 , G01R31/3187
摘要： An integrated circuit includes a sensor for providing a sensor output signal and a diagnostic circuit coupled to the sensor for providing a self-diagnostic signal. The self-diagnostic signal comprises the sensor output signal during a first time duration and an inverted sensor output signal during a second different time duration.
摘要翻译：集成电路包括用于提供传感器输出信号的传感器和耦合到传感器的诊断电路，用于提供自诊断信号。自诊断信号包括在第一持续时间期间的传感器输出信号和在第二不同持续时间期间的反向传感器输出信号。

2. 发明授权

US07800389B2 Integrated circuit having built-in self-test features 有权
标题翻译：集成电路具有内置的自检功能
公开(公告)号：US07800389B2
公开(公告)日：2010-09-21
申请号：US11777406
申请日：2007-07-13
申请人： Andreas P. Friedrich , Andrea Foletto , P. Karl Scheller , Paul David
发明人： Andreas P. Friedrich , Andrea Foletto , P. Karl Scheller , Paul David
IPC分类号： G01R31/26
CPC分类号： G01R31/318511 , G01R31/3187
摘要： An integrated circuit includes a sensor for providing a sensor output signal and a diagnostic circuit coupled to the sensor for providing a self-diagnostic signal. The self-diagnostic signal comprises the sensor output signal during a first time duration and an inverted sensor output signal during a second different time duration.
摘要翻译：集成电路包括用于提供传感器输出信号的传感器和耦合到传感器的诊断电路，用于提供自诊断信号。自诊断信号包括在第一持续时间期间的传感器输出信号和在第二不同持续时间期间的反向传感器输出信号。

3. 发明授权

US09329057B2 Gear tooth sensor with peak and threshold detectors 有权
标题翻译：具有峰值和阈值检测器的齿轮传感器
公开(公告)号：US09329057B2
公开(公告)日：2016-05-03
申请号：US13484501
申请日：2012-05-31
申请人： Andrea Foletto , Michael Morris , Mathew Drouin , Devon Fernandez , Andreas P. Friedrich , P. Karl Scheller
发明人： Andrea Foletto , Michael Morris , Mathew Drouin , Devon Fernandez , Andreas P. Friedrich , P. Karl Scheller
IPC分类号： G01R33/06 , G01D5/244 , G01R33/02 , G01D5/14
CPC分类号： G01D5/2448 , G01D5/145
摘要： Presented herein is a magnetic field sensor architecture that uses outputs of a peak detector and threshold detector operating in parallel to detect magnetic anomalies that may be associated with the target being sensed, e.g., a rotational ferromagnetic object such as a toothed gear, and use such detection to prevent sensor malfunction. The sensor includes an edge detection circuit and an error detection circuit. In one embodiment, the edge detection circuit includes circuits to detect edges (or transitions) of the threshold and peak detector output signals and the error detection circuit includes circuits, responsive to the edge detection circuit, to indicate an error when a “missed transition” occurs or a peak-to-peak value of an input signal as detected by the peak detector for a current cycle differs from an expected peak-to-peak value by a predetermined amount.
摘要翻译：这里呈现的是一种磁场传感器架构，其使用平行操作的峰值检测器和阈值检测器的输出来检测可能与感测到的目标相关联的磁异常，例如旋转铁磁物体，例如齿轮，并使用检测以防止传感器故障。传感器包括边缘检测电路和错误检测电路。在一个实施例中，边缘检测电路包括用于检测阈值和峰值检测器输出信号的边缘（或转换）的电路，并且误差检测电路包括响应于边缘检测电路的指示当“错过转换” 或由峰值检测器为当前周期检测的输入信号的峰 - 峰值与期望的峰 - 峰值不同预定量。

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. 发明申请

US20130320970A1 GEAR TOOTH SENSOR WITH PEAK AND THRESHOLD DETECTORS 有权
标题翻译：齿轮传感器与峰值和阈值检测器
公开(公告)号：US20130320970A1
公开(公告)日：2013-12-05
申请号：US13484501
申请日：2012-05-31
申请人： Andrea Foletto , Michael Morris , Mathew Drouin , Devon Fernandez , Andreas P. Friedrich , P. Karl Scheller
发明人： Andrea Foletto , Michael Morris , Mathew Drouin , Devon Fernandez , Andreas P. Friedrich , P. Karl Scheller
IPC分类号： G01R33/06 , G01R33/02
CPC分类号： G01D5/2448 , G01D5/145
摘要： Presented herein is a magnetic field sensor architecture that uses outputs of a peak detector and threshold detector operating in parallel to detect magnetic anomalies that may be associated with the target being sensed, e.g., a rotational ferromagnetic object such as a toothed gear, and use such detection to prevent sensor malfunction. The sensor includes an edge detection circuit and an error detection circuit. In one embodiment, the edge detection circuit includes circuits to detect edges (or transitions) of the threshold and peak detector output signals and the error detection circuit includes circuits, responsive to the edge detection circuit, to indicate an error when a “missed transition” occurs or a peak-to-peak value of an input signal as detected by the peak detector for a current cycle differs from an expected peak-to-peak value by a predetermined amount.
摘要翻译：这里呈现的是一种磁场传感器架构，其使用平行操作的峰值检测器和阈值检测器的输出来检测可能与感测到的目标相关联的磁异常，例如旋转铁磁物体，例如齿轮，并使用检测以防止传感器故障。传感器包括边缘检测电路和错误检测电路。在一个实施例中，边缘检测电路包括用于检测阈值和峰值检测器输出信号的边缘（或转换）的电路，并且误差检测电路包括响应于边缘检测电路的指示当“错过转换” 或由峰值检测器为当前周期检测的输入信号的峰 - 峰值与期望的峰 - 峰值不同预定量。

8. 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。

9. 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。

10. 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。

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