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    MAGNETIC FIELD SENSOR HAVING MULTIPLE SENSING ELEMENTS FOR MISALIGNMENT DETECTION AND CORRECTION IN CURRENT SENSING AND OTHER APPLICATIONS
    31.
    发明申请
    MAGNETIC FIELD SENSOR HAVING MULTIPLE SENSING ELEMENTS FOR MISALIGNMENT DETECTION AND CORRECTION IN CURRENT SENSING AND OTHER APPLICATIONS 有权
    具有多种传感元件的磁场传感器用于电流传感和其他应用中的误差检测和校正

    公开(公告)号：US20130265036A1

    公开(公告)日：2013-10-10

    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： H01L43/06 ,  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。

    METHODS AND APPARATUS FOR SUPPLY VOLTAGE TRANSIENT PROTECTION
    32.
    发明申请
    METHODS AND APPARATUS FOR SUPPLY VOLTAGE TRANSIENT PROTECTION 有权
    供电电压瞬态保护的方法和装置

    公开(公告)号：US20130176012A1

    公开(公告)日：2013-07-11

    申请号：US13344052

    申请日：2012-01-05

    申请人： Jeff Eagen ,  Devon Fernandez ,  P. Karl Scheller

    发明人： Jeff Eagen ,  Devon Fernandez ,  P. Karl Scheller

    IPC分类号： G05F1/10

    CPC分类号： H03K17/24 ,  H02M1/32 ,  H03K17/94

    摘要： Methods and apparatus for an integrated circuit that includes a supply voltage transient detection module to activate a hold signal that causes the output to remain in its present state. In one embodiment, the output remains in that state until the supply voltage returns to a normal operating range and the hold signal transitions to an inactive state.

    摘要翻译： 一种用于集成电路的方法和装置，其包括电源电压瞬变检测模块以激活使输出保持在其当前状态的保持信号。 在一个实施例中，输出保持在该状态，直到电源电压恢复到正常工作范围，并且保持信号转换到无效状态。

    Phase comparator and data separator
    35.
    发明授权
    Phase comparator and data separator 失效
    相位比较器和数据分离器

    公开(公告)号：US4806870A

    公开(公告)日：1989-02-21

    申请号：US142042

    申请日：1988-01-11

    申请人： P. Karl Scheller

    发明人： P. Karl Scheller

    IPC分类号： G01R25/00 ,  H03K3/02 ,  H03K9/06

    CPC分类号： G01R25/00

    摘要： A phase comparator for use in a phase-locked loop, responsive to CLOCK and DATA signals, for producing UP and DOWN commands exhibiting a difference in duration proportional to the phase difference between the CLOCK and DATA signals, for controlling the charge pump of the loop, can be used with half-clock times as fast as one gate delay and one flip-flop delay, rendering it useful for high-speed operation.

    摘要翻译： 一个相位比较器，用于响应时钟和数据信号的锁相环，用于产生呈现与时钟和数据信号之间的相位差成比例的持续时间差的UP和DOWN指令，用于控制环路的电荷泵 ，可以使用半个时钟速度，像一个门延迟和一个触发器延迟一样快，使其对于高速操作非常有用。

    Magnetic Field Sensors And Related Techniques That Can Provide A Self-Test Using Signals And Related Thresholds
    36.
    发明申请
    Magnetic Field Sensors And Related Techniques That Can Provide A Self-Test Using Signals And Related Thresholds 有权
    可以使用信号和相关阈值提供自检的磁场传感器和相关技术

    公开(公告)号：US20130335068A1

    公开(公告)日：2013-12-19

    申请号：US13526113

    申请日：2012-06-18

    申请人： Daniel S. Dwyer ,  Christine Graham ,  P. Karl Scheller

    发明人： Daniel S. Dwyer ,  Christine Graham ,  P. Karl Scheller

    IPC分类号： G01R35/00

    CPC分类号： G01D5/147 ,  G01R33/072

    摘要： Magnetic field sensor and related techniques can identify passing conditions, failing conditions, and marginal conditions of a sensed object. The magnetic field sensor and techniques can use one or more peak values of a proximity signal representative of proximity of the object, DC offset values of the proximity signal, or threshold values related to an amplitude of a signal representative of the proximity signal to identify the conditions.

    摘要翻译： 磁场传感器和相关技术可以识别感测对象的通过条件，故障条件和边缘条件。 磁场传感器和技术可以使用表示物体接近度的接近信号的一个或多个峰值，接近信号的DC偏移值或与表示接近信号的信号的幅度相关的阈值，以识别 条件。

    Direction detection sensor
    37.
    发明授权
    Direction detection sensor 有权
    方向检测传感器

    公开(公告)号：US08022692B2

    公开(公告)日：2011-09-20

    申请号：US12355882

    申请日：2009-01-19

    申请人： Devon Fernandez ,  William P. Taylor ,  Michael Morris ,  P. Karl Scheller ,  Eric Shoemaker

    发明人： Devon Fernandez ,  William P. Taylor ,  Michael Morris ,  P. Karl Scheller ,  Eric Shoemaker

    IPC分类号： G01B7/14

    CPC分类号： G01B7/30 ,  G01D5/145 ,  G01D5/2451 ,  G01R33/072 ,  G01R33/091

    摘要： A sensor responsive to movement of a detection target includes a magnetic field transducer operative to provide a magnetic field signal proportional to a magnetic field associated with the detection target, a peak detector for tracking positive and negative peaks of the magnetic field signal to generate a tracking signal, and a comparator having a first input responsive to the magnetic field signal, a second input responsive to an input signal related to the tracking signal, and an output at which is provided an output signal comprising first pulses having a first pulse width when the detection target moves in a first direction and second pulses having a second pulse width when the detection target moves in a second direction.

    摘要翻译： 响应于检测目标的移动的传感器包括磁场传感器，该磁场传感器可操作以提供与与检测目标相关联的磁场成比例的磁场信号;峰值检测器，用于跟踪磁场信号的正峰值和负峰值以产生跟踪 信号，以及具有响应于磁场信号的第一输入的比较器，响应于与跟踪信号相关的输入信号的第二输入，以及输出，在该输出处提供包括具有第一脉冲宽度的第一脉冲的输出信号， 检测目标在第一方向上移动，并且当检测目标沿第二方向移动时具有第二脉冲宽度的第二脉冲。

    GEAR TOOTH SENSOR WITH PEAK AND THRESHOLD DETECTORS
    39.
    发明申请
    GEAR TOOTH SENSOR WITH PEAK AND THRESHOLD DETECTORS 有权
    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。

    HIGH ACCURACY DIFFERENTIAL CURRENT SENSOR FOR APPLICATIONS LIKE GROUND FAULT INTERRUPTERS
    40.
    发明申请
    HIGH ACCURACY DIFFERENTIAL CURRENT SENSOR FOR APPLICATIONS LIKE GROUND FAULT INTERRUPTERS 有权
    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。