公开(公告)号：US06815944B2

公开(公告)日：2004-11-09

申请号：US10282528

申请日：2002-10-29

申请人： Ravi Vig ,  Jay M. Towne ,  Glenn Forrest

发明人： Ravi Vig ,  Jay M. Towne ,  Glenn Forrest

IPC分类号： G01P366

CPC分类号： G01D5/24457 ,  G01D5/145 ,  G01P3/488 ,  H03K5/082

摘要： A method and apparatus for providing information from a speed and direction sensor is disclosed. The method and apparatus detect the presence of a ferromagnetic object as it moves past a sensor. The sensor determines speed and direction information regarding the ferromagnetic object, and further provides information relating to the environment surrounding the sensor or object, such as the status of an air gap between the sensor and the moving object, and the temperature of the environment in which the sensor or object is disposed.

摘要翻译： 公开了一种从速度和方向传感器提供信息的方法和装置。 该方法和装置在铁磁物体移动经过传感器时检测其存在。 传感器确定关于铁磁物体的速度和方向信息，并且还提供与传感器或物体周围的环境有关的信息，例如传感器和移动物体之间的气隙的状态，以及环境的温度，其中 设置传感器或物体。

公开(公告)号：US5389889A

公开(公告)日：1995-02-14

申请号：US119851

申请日：1993-09-10

申请人： Jay M. Towne ,  Ravi Vig ,  Paul W. Latham, II

发明人： Jay M. Towne ,  Ravi Vig ,  Paul W. Latham, II

IPC分类号： G01R33/07 ,  G05F3/26 ,  H03F15/00

CPC分类号： G01R33/07 ,  G05F3/265

摘要： A temperature-compensated current source energizes a Hall element. The current source includes a voltage divider across the DC voltage supply busses and a differential amplifier arranged as a voltage follower which develops the output voltage across a reference resistor, creating a reference current which is amplified to generate a Hall energizing current. This results in a Hall element gain which is controllable over temperature. The temperature coefficient of the resistor can be chosen to compensate for the sensitivity temperature coefficient of a Hall element powered by a constant current source. Additionally, the temperature coefficient of the resistor may be chosen to compensate for the temperature coefficient of a magnet used to generate the magnetic field which the Hall element is intended to detect. The magnitude of the Hall current, and thus the Hall element gain, is directly proportional to the magnitude of the DC voltage supply. A trimmable current amplifier is used to compensate for the effects of manufacturing tolerances on the magnitude of the Hall current.

摘要翻译： 温度补偿电流源激励霍尔元件。 电流源包括直流电压源总线上的分压器和布置为电压跟随器的差分放大器，其在参考电阻器两端产生输出电压，产生被放大以产生霍尔通电电流的参考电流。 这导致可以在温度下控制的霍尔元件增益。 可以选择电阻器的温度系数来补偿由恒流源供电的霍尔元件的灵敏度温度系数。 此外，可以选择电阻器的温度系数来补偿用于产生霍尔元件旨在检测的磁场的磁体的温度系数。 霍尔电流的大小以及霍尔元件的增益与直流电压的幅度成正比。 可调节电流放大器用于补偿制造公差对霍尔电流幅度的影响。

公开(公告)号：US06919720B2

公开(公告)日：2005-07-19

申请号：US10347902

申请日：2003-01-21

申请人： Ravi Vig ,  Jay M. Towne ,  Michael C. Doogue

发明人： Ravi Vig ,  Jay M. Towne ,  Michael C. Doogue

IPC分类号： G01R19/04 ,  G01D5/14 ,  G01D5/244 ,  G01P3/488 ,  G01P3/489 ,  H03K5/08 ,  G01R33/00

CPC分类号： G01D5/24457 ,  G01D5/145 ,  G01P3/488 ,  G01P3/489 ,  G01P21/02 ,  H03K5/082

摘要： A detector to determine the peak-to-peak value of a signal is presented. The detector includes a first circuit to provide a tracking signal that tracks a positive slope of the signal during a first time interval and a negative slope of the signal during a second time interval. The detector further includes a second circuit configured to produce values associated with the tracking signal provided during one of the first and second time intervals, where one of the values is indicative of the peak-to-peak value of the signal.

摘要翻译： 提出了一种用于确定信号的峰 - 峰值的检测器。 检测器包括第一电路，用于提供在第一时间间隔期间跟踪信号的正斜率和在第二时间间隔期间信号的负斜率的跟踪信号。 检测器还包括第二电路，其被配置为产生与在第一和第二时间间隔期间提供的跟踪信号相关联的值，其中值之一表示信号的峰 - 峰值。

公开(公告)号：US20130093416A1

公开(公告)日：2013-04-18

申请号：US13705423

申请日：2012-12-05

申请人： David J. Haas ,  Ravi Vig

发明人： David J. Haas ,  Ravi Vig

IPC分类号： G01R33/02

CPC分类号： G01R33/02 ,  G01R33/0029 ,  G01R33/0041 ,  G01R33/072

摘要： A magnetic field sensor and a method associated with the magnetic field sensor provide gain correction coefficients and/or offset correction coefficients stored in the magnetic field sensor in digital form. The gain correction coefficients and/or offset correction coefficients can be used to generate analog control signals to control a sensitivity and/or an offset of an analog signal path through the magnetic field sensor.

摘要翻译： 磁场传感器和与磁场传感器相关联的方法以数字形式提供存储在磁场传感器中的增益校正系数和/或偏移校正系数。 增益校正系数和/或偏移校正系数可用于产生模拟控制信号以控制通过磁场传感器的模拟信号路径的灵敏度和/或偏移。

公开(公告)号：US20070247146A1

公开(公告)日：2007-10-25

申请号：US11767631

申请日：2007-06-25

申请人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

发明人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

IPC分类号： G01R33/00

CPC分类号： G01R15/205 ,  G01R15/207 ,  G01R33/09 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/4903 ,  H01L2924/00014

摘要： An electronic circuit includes a first substrate having a first substrate surface and a device supported by the first substrate surface. The device is selected from among a passive electronic component and an active electronic component. The electronic circuit also includes a second substrate having a second substrate surface and a conductor proximate to the second substrate. The electronic circuit also includes a magnetic field transducer disposed over the conductor and coupled to the device and an insulating layer disposed between the conductor and the second substrate. The conductor is adapted to carry an electrical current to generate a first magnetic field. The electronic circuit is responsive to the first magnetic field. In some embodiments, the conductor is a secondary conductor and the circuit further includes a primary conductor disposed proximate to the magnetic field transducer and an insulating layer disposed between the primary conductor and the second substrate.

摘要翻译： 电子电路包括具有第一衬底表面的第一衬底和由第一衬底表面支撑的器件。 从无源电子部件和有源电子部件中选择该装置。 电子电路还包括具有第二衬底表面和靠近第二衬底的导体的第二衬底。 电子电路还包括设置在导体上并耦合到器件的磁场换能器，以及设置在导体和第二衬底之间的绝缘层。 导体适于承载电流以产生第一磁场。 电子电路响应于第一磁场。 在一些实施例中，导体是次级导体，并且电路还包括邻近磁场换能器设置的主导体和设置在主导体和第二衬底之间的绝缘层。

公开(公告)号：US07259545B2

公开(公告)日：2007-08-21

申请号：US10364442

申请日：2003-02-11

申请人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

发明人： Jason Stauth ,  Richard Dickinson ,  Glenn Forrest ,  Ravi Vig

IPC分类号： G01R15/20

CPC分类号： G01R15/205 ,  G01R15/207 ,  G01R33/09 ,  H01L2224/48091 ,  H01L2224/48137 ,  H01L2224/48247 ,  H01L2224/4903 ,  H01L2924/00014

摘要： An integrated sensor includes a magnetoresistance element electrically coupled to a device disposed on or integrated in a silicon substrate. A conductor is provided proximate to the magnetoresistance element. The integrated sensor can be used to provide various devices, such as a current sensor, a magnetic field sensor, or an isolator. Further, the integrated sensor can be used in an open loop configuration or in a closed loop configuration in which an additional conductor is provided. The magntoresistance element may be formed over the silicon substrate or on a separate, non-silicon substrate. Also described is an integrated sensor comprising a substrate, a magnetic field transducer disposed over a surface of the substrate, and a conductor disposed over the surface of the substrate proximate to the magnetic field transducer. The magnetic field transducer can be a Hall effect transducer or a magnetoresistance element.

摘要翻译： 集成传感器包括电耦合到设置在硅衬底上或集成在硅衬底中的器件的磁阻元件。 导体靠近磁阻元件设置。 集成传感器可用于提供各种设备，例如电流传感器，磁场传感器或隔离器。 此外，集成传感器可以以开环配置或闭环配置使用，其中提供附加导体。 可以在硅衬底上或在单独的非硅衬底上形成磁阻电阻元件。 还描述了一种集成传感器，其包括衬底，设置在衬底的表面上的磁场换能器，以及设置在靠近磁场换能器的衬底表面上的导体。 磁场传感器可以是霍尔效应传感器或磁阻元件。

公开(公告)号：US20060103377A1

公开(公告)日：2006-05-18

申请号：US10989433

申请日：2004-11-17

申请人： Takashi Hara ,  Kazuhiro Kamiya ,  Kenichi Taguchi ,  Toshiyuki Matsuo ,  Takayoshi Tsuzuki ,  Glenn Forrest ,  Karl Scheller ,  Ravi Vig

发明人： Takashi Hara ,  Kazuhiro Kamiya ,  Kenichi Taguchi ,  Toshiyuki Matsuo ,  Takayoshi Tsuzuki ,  Glenn Forrest ,  Karl Scheller ,  Ravi Vig

IPC分类号： G01B7/30

CPC分类号： G01D5/147 ,  G01D5/24452 ,  G01D5/2448 ,  G01D5/2449

摘要： Disclosed is a rotation detecting sensor suitable for use under a vibration-abundant condition as e.g. a sensor disposed in an automobile body for detecting rotation of an engine or ABS. The sensor includes a detecting element for detecting rotation of a rotary body as a change in a magnetic flux and outputting a signal and an integrated circuit for processing the amplified signal into a pulse corresponding to the detected rotation of the rotary body. The signal processing includes an initialization such as a gain adjustment for obtaining an appropriate gain for use in the subsequent process of conversion of the amplified signal to the pulse. According to this invention, a re-initialization is effected to obtain a new initial value such as a new gain if the previously effected initialization is determined inappropriate.

摘要翻译： 公开了一种旋转检测传感器，适用于振动充足的条件下使用。 设置在汽车主体中用于检测发动机或ABS的旋转的传感器。 传感器包括用于检测旋转体的旋转的检测元件作为磁通量的变化，并且输出信号和用于将放大的信号处理为与所检测到的旋转体的旋转相对应的脉冲的集成电路。 信号处理包括诸如增益调整的初始化，用于获得用于将放大信号转换为脉冲的后续处理中使用的适当增益。 根据本发明，如果先前影响的初始化被确定为不适当，则进行重新初始化以获得新的初始值，例如新的增益。

公开(公告)号：US06356741B1

公开(公告)日：2002-03-12

申请号：US09338668

申请日：1999-06-22

申请人： Alberto Bilotti ,  Glenn A. Forrest ,  Ravi Vig

发明人： Alberto Bilotti ,  Glenn A. Forrest ,  Ravi Vig

IPC分类号： H04B138

CPC分类号： H03K17/97 ,  H03K17/9517 ,  Y10T307/766

摘要： A switch which is magnetic pole insensitive is described. The switch includes a Hall effect sensor coupled to a threshold circuit which provides an output signal indicative of the proximity of a magnet, and hence a magnetic field, to the Hall effect sensor regardless of the orientation of the magnet to the Hall effect sensor.

摘要翻译： 描述了磁极不敏感的开关。 该开关包括耦合到阈值电路的霍尔效应传感器，其向霍尔效应传感器提供指示磁体接近的输出信号，并因此提供磁场，而不管磁体与霍尔效应传感器的取向如何。

公开(公告)号：US5781005A

公开(公告)日：1998-07-14

申请号：US485697

申请日：1995-06-07

申请人： Ravi Vig ,  Teri L. Tu

发明人： Ravi Vig ,  Teri L. Tu

IPC分类号： G01P3/488 ,  G01D5/14 ,  G01D5/245 ,  G01R33/07 ,  G01V3/08 ,  H01H36/00 ,  H01L27/22 ,  H01L43/06 ,  G01P3/48 ,  G01B7/14 ,  G01P3/54

CPC分类号： G01V3/08 ,  G01D5/147 ,  G01R33/07

摘要： A Hall-effect sensor is presented which is adapted to sense a ferromagnetic object, including an integrated circuit chip having a planar Hall element which is positioned in, parallel to, and defines a sensor plane having a front side and a back side, and which element is normal to and centered on a sensor axis, and a magnet structure having an N pole and an S pole, the magnet structure being positioned behind the sensor plane and positioned so that an S pole and an N pole are adjacent each other and both are adjacent the element.

摘要翻译： 本发明提出了一种霍尔效应传感器，其适用于检测铁磁性物体，包括集成电路芯片，该集成电路芯片具有平面霍尔元件，该平面霍尔元件位于并平行并限定了具有前侧和后侧的传感器平面， 元件以传感器轴线为中心，以及具有N极和S极的磁体结构，磁体结构位于传感器平面的后面并且定位成使得S极和N极彼此相邻并且两者都相邻 与元素相邻。

公开(公告)号：US5581179A

公开(公告)日：1996-12-03

申请号：US454916

申请日：1995-05-31

申请人： Raymond W. Engel ,  Peter J. Gilbert ,  Ravi Vig ,  Teri Tu ,  Terry Clapp

发明人： Raymond W. Engel ,  Peter J. Gilbert ,  Ravi Vig ,  Teri Tu ,  Terry Clapp

IPC分类号： G01P3/488 ,  G01B7/00 ,  G01D5/14 ,  G01D5/245 ,  G01D11/24 ,  G01P3/487 ,  G01P1/02 ,  G01B7/14 ,  G01P3/42 ,  H05K5/00

CPC分类号： G01P3/487 ,  G01D11/245 ,  G01D5/147

摘要： This invention is a magnetic-field sensor assembly comprising a preformed housing shell having a first end which includes an opening, and a second end which includes a window and having a cylindrical shape with a flattened portion to produce a truncated circular cross-section, a sensor package including an integrated-circuit magnetic-field-sensor chip encapsulated in a protective body with first and second opposite and mutually parallel faces and a plurality of integral conductive leads, each lead having a proximal portion, a distal portion, and a central portion, the proximal portion of each of said plurality of leads extending from said body, the central portion of said plurality of leads extending away from the body and positioned substantially normal the faces of the body, said sensor-package body being positioned in said housing shell part way through said window with said one body face extending outwardly from said housing shell and with said lead distal portions extending from said housing shell through said opening, a magnet having a first end and a second end and positioned in said housing shell with said first end adjacent to said second sensor-package body face, and an endcap adapted to close said opening in said housing shell.

摘要翻译： 本发明是一种磁场传感器组件，其包括具有包括开口的第一端的预成型壳体壳体，以及包括窗口并且具有扁平部分的圆柱形形状以产生截面圆形横截面的第二端， 传感器封装，其包括封装在具有第一和第二相对且相互平行的面的保护体中的集成电路磁场传感器芯片，以及多个整体式导电引线，每个引线具有近端部分，远端部分和中心部分 所述多个引线中的每一个的近端部分从所述主体延伸，所述多个引线的中心部分远离主体延伸并且基本上垂直于主体的表面定位，所述传感器封装主体位于所述壳体壳体中 部分通过所述窗口，所述一个主体面从所述壳体外壳向外延伸，并且所述引线远端部分从s延伸 通过所述开口帮助壳体壳体，具有第一端和第二端并且定位在所述壳体壳体中的所述第一端部与所述第二传感器封装主体面相邻的磁体，以及用于封闭所述壳体壳体中的所述开口的端盖。