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公开(公告)号：US07598601B2
公开(公告)日：2009-10-06
申请号：US12171651
申请日：2008-07-11
IPC分类号： H01L23/495
CPC分类号： G01R15/207 , G01R1/18 , G01R15/202 , H01L23/552 , H01L24/37 , H01L24/40 , H01L24/48 , H01L24/73 , H01L24/91 , H01L2224/37147 , H01L2224/40095 , H01L2224/40245 , H01L2224/48247 , H01L2224/4826 , H01L2224/73215 , H01L2224/73221 , H01L2924/00014 , H01L2924/01005 , H01L2924/01006 , H01L2924/01013 , H01L2924/01015 , H01L2924/01024 , H01L2924/01029 , H01L2924/01033 , H01L2924/01047 , H01L2924/01074 , H01L2924/01079 , H01L2924/01082 , H01L2924/01322 , H01L2924/014 , H01L2924/1306 , H01L2924/14 , H01L2924/181 , H01L2924/3025 , H01L2924/00 , H01L2924/00012 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
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 position. 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 current sensor can also include an electromagnetic shield disposed between the current conductor portion and the magnetic field sensing elements.
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位置的第二表面。 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。 电流传感器还可以包括设置在电流导体部分和磁场感测元件之间的电磁屏蔽。
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公开(公告)号：US20090102464A1
公开(公告)日：2009-04-23
申请号：US11876048
申请日：2007-10-22
CPC分类号： G01R33/093 , B82Y25/00 , G01R15/205
摘要： A magnetoresistive (MR) sensing device includes MR elements electrically connected to form a bridge circuit and one or more non-functional (or “dummy”) MR elements for improved matching of the bridge circuit MR elements.
摘要翻译： 磁阻（MR）感测装置包括电连接以形成桥接电路和一个或多个非功能（或“虚拟”）MR元件的MR元件，用于改善桥接电路MR元件的匹配。
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公开(公告)号：US07476953B2
公开(公告)日：2009-01-13
申请号：US11051124
申请日：2005-02-04
IPC分类号： H01L43/00
CPC分类号： G01R33/02
摘要： An integrated sensor has a magnetic field sensing element and first and second relatively high magnetically permeable members forming a gap, wherein the magnetic field element is disposed within the gap. The magnetically permeable members provide an increase in the flux experienced by the magnetic field sensing element in response to a magnetic field. The integrated sensor can be used as a current sensor, a proximity detector, or a magnetic field sensor.
摘要翻译： 集成传感器具有磁场感测元件和形成间隙的第一和第二相对较高的磁导体构件，其中磁场元件设置在间隙内。 磁导体构件响应于磁场而提供磁场感测元件所经受的磁通量的增加。 集成传感器可用作电流传感器，接近检测器或磁场传感器。
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44.发明授权Methods and apparatus for a current sensor having fault detection and self test functionality 有权具有故障检测和自检功能的电流传感器的方法和装置公开(公告)号：US09383425B2
公开(公告)日：2016-07-05
申请号：US13730100
申请日：2012-12-28
CPC分类号： G01R35/00 , B60L1/00 , G01H1/00 , G01R1/00 , G01R31/2829 , G01R33/072 , H01L2224/05554 , H01L2224/48247 , H01L2224/49171 , H02H1/00
摘要： Methods and apparatus for an integrated circuit having a magnetic sensing element, a fault detection module including circuitry to detect a fault condition and to self-test operation of the circuitry to detect the fault. The integrated circuit includes a fault pin to indicate the fault condition.
摘要翻译： 具有磁感测元件的集成电路的方法和装置，故障检测模块包括用于检测故障状况的电路以及用于检测故障的电路的自检操作。 集成电路包括一个故障引脚，用于指示故障状态。
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公开(公告)号：US20130015843A1
公开(公告)日：2013-01-17
申请号：US13181926
申请日：2011-07-13
申请人： Michael C. Doogue , Shaun D. Milano
发明人： Michael C. Doogue , Shaun D. Milano
IPC分类号： G01R35/00
CPC分类号： G01R15/148 , G01R15/207 , G01R35/005
摘要： An integrated circuit (IC) current sensor that self-calibrates to adjust its signal gain when employed in a current divider configuration is presented. The current sensor includes an integrated current conductor, a magnetic field transducer, a controllable gain stage and a calibration controller. The integrated current conductor is adapted to receive a portion of a calibration current. The calibration current corresponds to a full scale current. The magnetic field transducer, responsive to the calibration current portion, provides a magnetic field signal having a magnitude proportional to a magnetic field generated by the calibration current portion. The controllable gain stage is configured to amplify the magnetic field signal with an adjustable gain to provide an amplified magnetic field signal. The calibration controller is responsive to a calibration command signal to adjust the adjustable gain of the controllable gain stage to a calibrated gain in order to provide the amplified magnetic field signal at a predetermined voltage level that corresponds to a desired current sensor output signal voltage level if the full scale current were received by the integrated current conductor.
摘要翻译： 提出了一种集成电路（IC）电流传感器，当采用分流器配置时，可自行校准以调整其信号增益。 电流传感器包括集成电流导体，磁场换能器，可控增益级和校准控制器。 集成电流导体适于接收校准电流的一部分。 校准电流对应于满量程电流。 响应于校准电流部分的磁场传感器提供具有与由校准电流部分产生的磁场成比例的幅度的磁场信号。 可控增益级被配置为以可调增益放大磁场信号以提供放大的磁场信号。 校准控制器响应于校准命令信号以将可控增益级的可调增益调整到校准增益，以便将放大的磁场信号提供在与期望的电流传感器输出信号电压电平相对应的预定电压电平，如果 集成电流导体接收到满量程电流。
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46.发明申请公开(公告)号：US20120262155A1
公开(公告)日：2012-10-18
申请号：US13084745
申请日：2011-04-12
IPC分类号： G01B7/30
CPC分类号： G01R33/077 , G01P3/4802 , G01P3/487 , G01R33/0029
摘要： A magnetic field sensor and a method used therein provide an output signal in angle units representative of an angle of rotation of a target of and also an output signal in speed units representative of a speed of rotation of the target object. A power control circuit can cycle a magnetic field sensor on and off in accordance with a sensed rotation speed of the object.
摘要翻译： 磁场传感器及其中使用的方法提供表示目标物体的旋转角度的角度单位的输出信号，以及表示目标对象的旋转速度的速度单位的输出信号。 功率控制电路可以根据感测到的对象的旋转速度来对磁场传感器进行开和关。
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47.发明申请METHODS AND APPARATUS FOR AN ANALOG ROTATIONAL SENSOR HAVING MAGNETIC SENSOR ELEMENTS 有权具有磁性传感器元件的模拟旋转传感器的方法和装置公开(公告)号：US20110121825A1
公开(公告)日：2011-05-26
申请号：US13022096
申请日：2011-02-07
IPC分类号： G01B7/30
摘要： A sensor includes a magnetic position sensing element to generate angular position information, a first signal generator, a second signal generator, a first inverter to invert the first waveform for providing a first inverted waveform and a second inverter to invert the second waveform for providing a second inverted waveform, wherein the first and second waveforms are inverted about an offset voltage, and an analog signal processing module to generate a linear output signal from the first waveform, the second waveform, the first inverted waveform, and the second inverted waveform.
摘要翻译： 传感器包括用于产生角位置信息的磁位置检测元件，第一信号发生器，第二信号发生器，用于反转用于提供第一反相波形的第一波形的第一反相器和用于反转第二波形以提供第一反相波形的第二反相器 第二反相波形，其中第一和第二波形关于偏移电压反相，以及模拟信号处理模块，用于从第一波形，第二波形，第一反相波形和第二反相波形产生线性输出信号。
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公开(公告)号：US07622914B2
公开(公告)日：2009-11-24
申请号：US12337972
申请日：2008-12-18
申请人： James M. Bailey , Michael C. Doogue , Jay M. Towne
发明人： James M. Bailey , Michael C. Doogue , Jay M. Towne
IPC分类号： G01B7/14
CPC分类号： G01H1/003 , G01D5/2451 , G01R33/025
摘要： Apparatus for detecting vibration of an object adapted to rotate includes one or more vibration processors selected from: a direction-change processor adapted to detect changes in a direction of rotation of the object, a direction-agreement processor adapted to identify a direction of rotation of the object in at least two channels and identify an agreement or disagreement in direction of rotation identified by the at least two channels, a phase-overlap processor adapted to identify overlapping signal regions in signals associated with the rotation of the object, and a running mode processor adapted to identify an unresponsive output signal from at least one of the at least two channels. A method for detecting the vibration of the object includes generating at least one of a direction-change output signal with the direction-change processor, a direction-agreement output signal with the direction-agreement processor, a phase-overlap output signal with the phase-overlap processor, and a running-mode-vibration output signal with the running-mode processor, each indicative of the vibration the object.
摘要翻译： 用于检测适于旋转的物体的振动的装置包括一个或多个振动处理器，所述振动处理器选自：适于检测所述物体的旋转方向的变化的方向改变处理器，适于识别所述物体的旋转方向的方向协调处理器， 在至少两个信道中的对象，并且识别由所述至少两个信道识别的旋转方向上的一致或不一致;相位重叠处理器，适于识别与所述对象的旋转相关联的信号中的重叠信号区域; 模式处理器，适于识别来自至少两个通道中的至少一个的无响应输出信号。 用于检测物体的振动的方法包括：通过方向转换处理器产生方向变化输出信号，与方向协议处理器的方向一致输出信号，相位相位输出信号中的至少一个 - 重叠处理器和运行模式 - 振动输出信号与运行模式处理器，每个指示对象的振动。
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公开(公告)号：US09182456B2
公开(公告)日：2015-11-10
申请号：US13413037
申请日：2012-03-06
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。
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公开(公告)号：US08773123B2
公开(公告)日：2014-07-08
申请号：US13239587
申请日：2011-09-22
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。
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