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    Current sensor
    5.
    发明授权
    Current sensor 有权
    电流传感器

    公开(公告)号：US07075287B1

    公开(公告)日：2006-07-11

    申请号：US11336602

    申请日：2006-01-20

    申请人： Vijay Mangtani ,  Michael C. Doogue ,  William P. Taylor

    发明人： Vijay Mangtani ,  Michael C. Doogue ,  William P. Taylor

    IPC分类号： G01R33/00

    CPC分类号： G01R15/202 ,  G01R1/36 ,  G01R15/207 ,  H01L24/37 ,  H01L24/40 ,  H01L2224/37147 ,  H01L2224/40095 ,  H01L2224/40245 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/73221 ,  H01L2224/84801 ,  H01L2224/8485 ,  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 integrated circuit includes an overcurrent circuit responsive to a voltage drop generated by a current.

    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。 集成电路包括响应于由电流产生的电压降的过电流电路。

    Magnetic field sensor with automatic sensitivity adjustment
    8.
    发明授权
    Magnetic field sensor with automatic sensitivity adjustment 有权

    公开(公告)号：US07923996B2

    公开(公告)日：2011-04-12

    申请号：US12037393

    申请日：2008-02-26

    申请人： Michael C. Doogue ,  Gerardo Monreal ,  William P. Taylor

    发明人： Michael C. Doogue ,  Gerardo Monreal ,  William P. Taylor

    IPC分类号： G01R33/06 ,  G01R33/07 ,  G01R33/09

    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.