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1.发明申请公开(公告)号：US20110018533A1
公开(公告)日：2011-01-27
申请号：US12840324
申请日：2010-07-21
IPC分类号： G01R33/06
CPC分类号： G01R35/005 , G01R33/0035
摘要： A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing element used within the magnetic field sensor. The magnetic field sensor can generate a diagnostic magnetic field to which the magnetic field sensor is responsive.
摘要翻译： 磁场传感器包括允许磁场传感器的电路的大部分或全部的自检的诊断电路，包括在磁场传感器内使用的磁场感测元件的自检。 磁场传感器可以产生磁场传感器响应的诊断磁场。
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2.发明授权Circuits and methods for generating a diagnostic mode of operation in a magnetic field sensor 有权用于在磁场传感器中产生诊断操作模式的电路和方法公开(公告)号：US08542010B2
公开(公告)日：2013-09-24
申请号：US12840324
申请日：2010-07-21
IPC分类号： G01R33/06
CPC分类号： G01R35/005 , G01R33/0035
摘要： A magnetic field sensor includes a diagnostic circuit that allows a self-test of most of or all of, the circuitry of the magnetic field sensor, including a self-test of a magnetic field sensing element used within the magnetic field sensor. The magnetic field sensor can generate a diagnostic magnetic field to which the magnetic field sensor is responsive.
摘要翻译： 磁场传感器包括允许磁场传感器的电路的大部分或全部的自检的诊断电路，包括在磁场传感器内使用的磁场感测元件的自检。 磁场传感器可以产生磁场传感器响应的诊断磁场。
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公开(公告)号：US07923996B2
公开(公告)日：2011-04-12
申请号：US12037393
申请日：2008-02-26
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.
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公开(公告)号：US20110074405A1
公开(公告)日：2011-03-31
申请号：US12959672
申请日：2010-12-03
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。
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公开(公告)号：US08030918B2
公开(公告)日：2011-10-04
申请号：US12959672
申请日：2010-12-03
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。
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公开(公告)号：US20090212765A1
公开(公告)日：2009-08-27
申请号：US12037393
申请日：2008-02-26
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。
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公开(公告)号：US20100237450A1
公开(公告)日：2010-09-23
申请号：US12792245
申请日：2010-06-02
IPC分类号： H01L29/82
CPC分类号： H01L43/02 , B82Y25/00 , G01R15/08 , G01R15/207 , G01R33/02 , G01R33/06 , G01R33/07 , G01R33/09 , G01R33/093 , H01L23/49541 , H01L25/162 , H01L43/04 , H01L43/065 , H01L43/08 , H01L2224/48091 , H01L2224/48137 , H01L2224/48247 , H01L2924/3025 , H01L2924/00014 , H01L2924/00
摘要： An integrated circuit can have a first substrate supporting a magnetic field sensing element and a second substrate supporting another magnetic field sensing element. The first and second substrates can be arranged in a variety of configurations. Another integrated circuit can have a first magnetic field sensing element and second different magnetic field sensing element disposed on surfaces thereof.
摘要翻译： 集成电路可以具有支撑磁场感测元件的第一基板和支撑另一磁场感测元件的第二基板。 第一和第二基板可以以各种配置布置。 另一个集成电路可以具有设置在其表面上的第一磁场感测元件和第二不同的磁场感测元件。
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公开(公告)号：US07777607B2
公开(公告)日：2010-08-17
申请号：US10962889
申请日：2004-10-12
IPC分类号： H01L43/00
CPC分类号： B82Y25/00 , G01R15/205 , G01R33/093 , H01C7/006 , H01C7/06 , H01F10/3272 , H01L27/22
摘要： A material stack has an electrical resistance generally the same in the presence of a magnetic field and in the presence of no magnetic field. The electrical resistance of the material stack has a temperature coefficient generally the same as a magnetoresistance element.
摘要翻译： 材料堆栈在存在磁场的情况下并且在没有磁场的情况下具有通常相同的电阻。 材料堆的电阻具有与磁阻元件大致相同的温度系数。
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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
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.
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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
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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