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1. 发明授权

US08922206B2 Magnetic field sensing element combining a circular vertical hall magnetic field sensing element with a planar hall element 有权
标题翻译：磁场感应元件将圆形垂直霍尔磁场感测元件与平面霍尔元件相结合
公开(公告)号：US08922206B2
公开(公告)日：2014-12-30
申请号：US13226694
申请日：2011-09-07
申请人： Andreas P. Friedrich , Andrea Foletto , Gary T. Pepka
发明人： Andreas P. Friedrich , Andrea Foletto , Gary T. Pepka
IPC分类号： G01R33/07 , H01L27/22
CPC分类号： G01R33/072 , G01R33/0052 , G01R33/077 , H01L43/065
摘要： A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described.
摘要翻译：磁场传感器包括圆形垂直霍尔（CVH）感测元件和至少一个平面霍尔元件。 CVH感测元件具有布置在衬底中的公共植入区域上的触点。在一些实施例中，至少一个平面霍尔元件形成为也具有布置在公共植入区域上方的触点的圆形平面霍尔（CPH）感测元件。分别描述CPH感测元件和制造CPH感测元件的方法。

2. 发明申请

US20130057257A1 MAGNETIC FIELD SENSING ELEMENT COMBINING A CIRCULAR VERTICAL HALL MAGNETIC FIELD SENSING ELEMENT WITH A PLANAR HALL ELEMENT 有权
标题翻译：与圆形霍尔元件组合的圆形垂直霍尔磁场感应元件的磁场感应元件
公开(公告)号：US20130057257A1
公开(公告)日：2013-03-07
申请号：US13226694
申请日：2011-09-07
申请人： Andreas P. Friedrich , Andrea Foletto , Gary T. Pepka
发明人： Andreas P. Friedrich , Andrea Foletto , Gary T. Pepka
IPC分类号： G01B7/30 , G01R33/06
CPC分类号： G01R33/072 , G01R33/0052 , G01R33/077 , H01L43/065
摘要： A magnetic field sensor includes a circular vertical Hall (CVH) sensing element and at least one planar Hall element. The CVH sensing element has contacts arranged over a common implant region in a substrate. In some embodiments, the at least one planar Hall element is formed as a circular planar Hall (CPH) sensing element also having contacts disposed over the common implant region. A CPH sensing element and a method of fabricating the CPH sensing element are separately described.
摘要翻译：磁场传感器包括圆形垂直霍尔（CVH）感测元件和至少一个平面霍尔元件。 CVH感测元件具有布置在衬底中的公共植入区域上的触点。在一些实施例中，至少一个平面霍尔元件形成为也具有布置在公共植入区域上方的触点的圆形平面霍尔（CPH）感测元件。分别描述CPH感测元件和制造CPH感测元件的方法。

3. 发明授权

US09182456B2 Magnetic field sensor for sensing rotation of an object 有权
标题翻译：用于感测物体旋转的磁场传感器
公开(公告)号：US09182456B2
公开(公告)日：2015-11-10
申请号：US13413037
申请日：2012-03-06
申请人： Eric Shoemaker , Michael C. Doogue , Andreas P. Friedrich , Andrea Foletto
发明人： Eric Shoemaker , Michael C. Doogue , Andreas P. Friedrich , Andrea Foletto
IPC分类号： G01P3/00 , G01R33/07 , G01D5/14 , G01D5/244
CPC分类号： G01R33/077 , G01D5/145 , G01D5/24438 , G01R33/075
摘要： A magnetic field sensor uses an angle sensor to measure and angle of rotation of a target object to which a magnet is attached. The angle sensor in combination with electronics can generate an angle sensor output signal related to a direction of a magnetic field of the magnet. The angle sensor output signal can be compared to thresholds to generate a magnetic field sensor output signal the same as a known true power on state (TPOS) sensor output signal. A corresponding method is also described.
摘要翻译：磁场传感器使用角度传感器来测量和附着磁体的目标物体的旋转角度。与电子装置组合的角度传感器可以产生与磁体的磁场方向相关的角度传感器输出信号。角度传感器输出信号可以与阈值进行比较，以产生与已知的真电源开启状态（TPOS）传感器输出信号相同的磁场传感器输出信号。还描述了相应的方法。

4. 发明申请

US20140175584A1 MAGNETIC FIELD SENSOR AND METHOD OF FABRICATING A MAGNETIC FIELD SENSOR HAVING A PLURALITY OF VERTICAL HALL ELEMENTS ARRANGED IN AT LEAST A PORTION OF A POLYGONAL SHAPE 有权
标题翻译：磁场传感器和制造具有多个垂直厚度元件的磁场传感器的方法至少在多边形形状的部分
公开(公告)号：US20140175584A1
公开(公告)日：2014-06-26
申请号：US13724170
申请日：2012-12-21
申请人： Andrea Foletto , Andreas P. Friedrich , Nicolas Yoakim
发明人： Andrea Foletto , Andreas P. Friedrich , Nicolas Yoakim
IPC分类号： G01B7/30 , H01L29/82
CPC分类号： H01L29/82 , G01R33/0023 , G01R33/077
摘要： A magnetic field sensor has a plurality of vertical Hall elements arranged in at least a portion of a polygonal shape. The magnetic field sensor includes an electronic circuit to process signals generated by the plurality of vertical Hall elements to identify a direction of a magnetic field. A corresponding method of fabricating the magnetic field sensor is also described.
摘要翻译：磁场传感器具有布置在多边形形状的至少一部分中的多个垂直霍尔元件。磁场传感器包括用于处理由多个垂直霍尔元件产生的信号以识别磁场方向的电子电路。还描述了制造磁场传感器的相应方法。

5. 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。

6. 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。

7. 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。

8. 发明授权

US09417295B2 Circuits and methods for processing signals generated by a circular vertical hall (CVH) sensing element in the presence of a multi-pole magnet 有权
标题翻译：用于在存在多极磁体的情况下处理由圆形垂直霍尔（CVH）感测元件产生的信号的电路和方法
公开(公告)号：US09417295B2
公开(公告)日：2016-08-16
申请号：US13724080
申请日：2012-12-21
申请人： Andreas P. Friedrich , Andrea Foletto
发明人： Andreas P. Friedrich , Andrea Foletto
IPC分类号： G01R33/07 , G01B7/30 , G01D5/14 , G01R33/00 , G01D5/245
CPC分类号： G01D5/145 , G01B7/30 , G01D5/2451 , G01R33/0023 , G01R33/007 , G01R33/072 , G01R33/077
摘要： A magnetic field sensor has a circular vertical Hall (CVH) sensing element with a plurality of vertical Hall elements disposed over a common implant region in a substrate. The plurality of vertical Hall elements is disposed in an x-y plane. The magnetic field sensor is responsive to a magnetic field generated by a multi-pole magnet having a plurality of north poles and also a plurality of south poles arranged in a plane parallel to the x-y plane, and, in some embodiments, arranged in the x-y plane. A corresponding method is also described.
摘要翻译：磁场传感器具有圆形的垂直霍尔（CVH）感测元件，多个垂直霍尔元件设置在衬底中的公共注入区域上。多个垂直霍尔元件设置在x-y平面中。磁场传感器响应于由具有多个北极的多极磁体产生的磁场以及在与xy平面平行的平面中布置的多个南极，并且在一些实施例中，被布置在xy 飞机还描述了相应的方法。

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

US09046383B2 Systems and methods that use magnetic field sensors to identify positions of a gear shift lever 有权
标题翻译：使用磁场传感器来识别换档杆的位置的系统和方法
公开(公告)号：US09046383B2
公开(公告)日：2015-06-02
申请号：US13484316
申请日：2012-05-31
申请人： Andreas P. Friedrich , Andrea Foletto , Cedric Gillet
发明人： Andreas P. Friedrich , Andrea Foletto , Cedric Gillet
IPC分类号： G01R33/09 , G01D5/14 , F16H59/70 , F16H59/04
CPC分类号： G01D5/145 , F16H59/044 , F16H59/70 , G01D5/147
摘要： A system and an associated method provide an ability to sense, with a magnetic field sensor, a position of a plurality of gears (and neutral) selected by a gear shift lever of a vehicle. In some embodiments, the system and method use a ferromagnetic target having features, positions of which can be sensed by the magnetic field sensor. In other embodiments, the system and method use a magnet having features and characteristics that can be sensed by the magnetic field sensor.
摘要翻译：系统和相关联的方法提供了利用磁场传感器感测由车辆的变速杆选择的多个齿轮（和空档）的位置的能力。在一些实施例中，系统和方法使用具有特征的铁磁目标，其位置可由磁场传感器感测。在其他实施例中，该系统和方法使用具有可由磁场传感器感测的特征和特性的磁体。

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