-
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.
-
公开(公告)号：US08054071B2
公开(公告)日：2011-11-08
申请号：US12043464
申请日：2008-03-06
IPC分类号： G01R33/07
CPC分类号： G01R33/07 , G01D5/145 , G01R33/0023 , G01R33/0035 , G01R33/09
摘要： A magnetic field sensor includes a linear magnetic field sensor to produce a voltage proportional to a sensed magnetic field and an interface having only two terminals for external connections. The two terminals of the interface include a power supply terminal and a ground terminal. The interface includes a voltage-controlled current generating device that is connected between the two terminals and is controlled by the voltage to provide a current signal that is proportional to the sensed magnetic field.
摘要翻译： 磁场传感器包括线性磁场传感器以产生与检测到的磁场成比例的电压和仅具有用于外部连接的两个端子的接口。 接口的两个端子包括电源端子和接地端子。 该接口包括电压控制的电流产生装置，其连接在两个端子之间并由电压控制以提供与所感测的磁场成比例的电流信号。
-
公开(公告)号：US07973527B2
公开(公告)日：2011-07-05
申请号：US12183541
申请日：2008-07-31
IPC分类号： G01R15/18
CPC分类号： G01R33/093 , B82Y25/00 , G01R15/205
摘要： An electronic circuit includes a magnetoresistance element for providing an output signal proportional to a magnetic field. The magnetoresistance element also has a hysteresis characteristic. The electronic circuit also includes at least one of a reset conductor or a bias conductor disposed proximate to the magnetoresistance element. For embodiments having a reset conductor, the electronic circuit is configured to generate a reset current carried by the reset conductor in response to the comparison. In response to the reset current, the reset conductor is configured to generate a reset magnetic field at the magnetoresistance element to temporarily force the magnetoresistance element to a saturation region of the hysteresis characteristic.
摘要翻译： 电子电路包括用于提供与磁场成比例的输出信号的磁阻元件。 磁阻元件也具有滞后特性。 电子电路还包括重置导体或靠近磁阻元件设置的偏置导体中的至少一个。 对于具有复位导体的实施例，电子电路被配置为响应于比较而产生由复位导体承载的复位电流。 响应于复位电流，复位导体被配置为在磁阻元件处产生复位磁场，以暂时将磁阻元件强制到滞后特性的饱和区域。
-
44.发明授权Methods and apparatus for an analog rotational sensor having magnetic sensor elements 有权具有磁传感器元件的模拟旋转传感器的方法和装置公开(公告)号：US07714570B2
公开(公告)日：2010-05-11
申请号：US11425567
申请日：2006-06-21
IPC分类号： G01B7/30
摘要： Methods and apparatus for a sensor include a signal generation module including a first magnetic sensor to generate a first waveform in the form of a sine wave and a second magnetic sensor to generate a second waveform in the form of a cosine wave, the first and second waveforms containing angular position information of a magnet in relation to the first and second magnetic sensors, and an analog signal processing module for providing an algebraic manipulation of the first waveform and the second waveform to generate a linear position output voltage signal.
摘要翻译： 用于传感器的方法和装置包括信号产生模块，其包括第一磁传感器，以产生正弦波形式的第一波形和第二磁传感器，以产生余弦波形式的第二波形，第一和第二 包含相对于第一和第二磁传感器的磁体的角位置信息的波形，以及用于提供第一波形和第二波形的代数操作以产生线性位置输出电压信号的模拟信号处理模块。
-
公开(公告)号：US07476816B2
公开(公告)日：2009-01-13
申请号：US11401160
申请日：2006-04-10
IPC分类号： H01L23/48
CPC分类号： G01R1/36 , G01R15/202 , G01R15/207 , G01R33/07 , H01L24/37 , H01L24/40 , H01L2224/32245 , H01L2224/37147 , H01L2224/40095 , H01L2224/40245 , H01L2224/48091 , H01L2224/48247 , H01L2224/4826 , H01L2224/73215 , H01L2924/01322 , H01L2924/1306 , 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 a substrate having a first surface in which is disposed one or more magnetic field sensing elements, with the first surface being proximate to 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 in a flip-chap arrangement. The lead frame also includes a shunt conductor portion formed as a coupling of the at least two leads.
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感测元件，其中第一表面接近电流 导体部分和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，衬底在倒装芯片布置中在集成电路中上下颠倒。 引线框架还包括形成为至少两个引线的耦合的并联导体部分。
-
公开(公告)号：US07358724B2
公开(公告)日：2008-04-15
申请号：US11129933
申请日：2005-05-16
IPC分类号： G01R33/00
CPC分类号： G01R15/207
摘要： A method and apparatus provide a substrate having a depression into which a magnetic material is disposed, forming a magnetic flux concentrator and/or a permanent magnet. A magnetic field sensing element can be disposed proximate to the depression.
摘要翻译： 一种方法和装置提供一种具有凹陷的基底，其中设置有磁性材料，形成磁通量聚集器和/或永磁体。 磁场感测元件可以靠近凹部设置。
-
公开(公告)号：US07166807B2
公开(公告)日：2007-01-23
申请号：US11144970
申请日：2005-06-03
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。
-
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
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。
-
49.发明授权High accuracy differential current sensor for applications like ground fault interrupters 有权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
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。
-
50.发明授权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。
-
-
-
-
-
-
-
-
-
搜索结果
84 条记录 (耗时 0.038 秒)
