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28 条记录 (耗时 0.042 秒)

    Magnetic field sensor with automatic sensitivity adjustment
    1.
    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.

    Chopped Hall effect sensor
    3.
    发明授权
    Chopped Hall effect sensor 有权
    切碎霍尔效应传感器

    公开(公告)号：US07425821B2

    公开(公告)日：2008-09-16

    申请号：US11550849

    申请日：2006-10-19

    申请人： Gerardo Monreal ,  Hernan D. Romero

    发明人： Gerardo Monreal ,  Hernan D. Romero

    IPC分类号： G01R33/07

    CPC分类号： G01D3/02 ,  G01R33/02 ,  G01R33/07

    摘要： A chopped Hall effect sensor topology includes a switched Hall plate, an amplifier responsive to an output of the switched Hall plate and a filter stage responsive to the output of the amplifier and including an anti-aliasing filter and a selective filter that is tuned to the modulation frequency. The switched Hall plate includes a Hall element and a Hall plate modulation circuit that modulates the Hall offset signal component or the magnetic signal component. In embodiments in which the Hall offset signal component is modulated by the switched Hall plate, the amplifier, if chopped, includes an even number of additional modulation circuits. In embodiments in which the magnetic signal component is modulated by the switched Hall plate, the amplifier contains an odd number of modulation circuits. The described topology provides a low noise, fast response time Hall effect sensor.

    摘要翻译： 切碎的霍尔效应传感器拓扑包括切换的霍尔板，响应于开关霍尔板的输出的放大器和响应于放大器的输出的滤波器级，并且包括抗混叠滤波器和选择滤波器，该滤波器被调谐到 调制频率。 切换的霍尔板包括霍尔元件和霍尔板调制电路，其调制霍尔偏移信号分量或磁信号分量。 在其中霍尔偏移信号分量由开关霍尔板调制的实施例中，放大器如果切断，则包括偶数个附加调制电路。 在其中磁信号分量由开关霍尔板调制的实施例中，放大器包含奇数个调制电路。 所描述的拓扑结构提供了低噪声，快速响应时间霍尔效应传感器。

    Proximity detector
    4.
    发明授权
    Proximity detector 有权
    接近检测器

    公开(公告)号：US07368904B2

    公开(公告)日：2008-05-06

    申请号：US11673728

    申请日：2007-02-12

    申请人： Karl Scheller ,  Gerardo Monreal ,  Jason Stauth

    发明人： Karl Scheller ,  Gerardo Monreal ,  Jason Stauth

    IPC分类号： G01B7/14

    CPC分类号： G01V3/081

    摘要： A proximity detector includes a fine DAC and a coarse DAC, outputs of which are summed to provide a tracking signal for tracking a magnetic field signal. The proximity detector provides two mode of operation. In a first mode of operation the coarse and fine DACs operate in combination as one higher order DAC. In a second mode of operation, the coarse DAC is provided with one or more extra counts, allowing the tracking signal to move more rapidly to track a rapidly changing magnetic field signal. In another embodiment, the proximity detector also includes an offset circuit for bringing at least one of the magnetic field signal and the tracking signal towards the other one of the magnetic field signal and the tracking signal.

    摘要翻译： 接近检测器包括精细DAC和粗略DAC，其输出相加以提供用于跟踪磁场信号的跟踪信号。 接近检测器提供两种操作模式。 在第一种工作模式下，粗略和精细的DAC作为一个高阶DAC组合工作。 在第二种操作模式中，粗略的DAC具有一个或多个额外的计数，允许跟踪信号更快地移动以跟踪快速变化的磁场信号。 在另一个实施例中，接近检测器还包括用于将磁场信号和跟踪信号中的至少一个朝向磁场信号和跟踪信号中的另一个的偏移电路。

    Magnetic field sensor with improved differentiation between a sensed magnetic field signal and a noise signal
    5.
    发明授权
    Magnetic field sensor with improved differentiation between a sensed magnetic field signal and a noise signal 有权
    磁场传感器具有改善的感测磁场信号与噪声信号之间的微分

    公开(公告)号：US08564285B2

    公开(公告)日：2013-10-22

    申请号：US12845115

    申请日：2010-07-28

    申请人： Hernan D. Romero ,  Gerardo Monreal

    发明人： Hernan D. Romero ,  Gerardo Monreal

    IPC分类号： G01R33/06

    CPC分类号： G01R33/07 ,  G01R33/0029

    摘要： A magnetic field sensor includes a Hall element configured to generate a Hall element output signal in response to a magnetic field, the Hall element output signal comprising a magnetic field signal component and an offset signal component. The magnetic field sensor also includes a Hall element modulation circuit coupled to receive the Hall element output signal and configured to generate a modulation circuit output signal. The Hall element modulation circuit is modulated with a modulation signal having a changing modulation frequency that changes between a minimum frequency and a maximum frequency.

    摘要翻译： 磁场传感器包括霍尔元件，其被配置为响应于磁场产生霍尔元件输出信号，霍尔元件输出信号包括磁场信号分量和偏移信号分量。 磁场传感器还包括霍尔元件调制电路，该霍尔元件调制电路被耦合以接收霍尔元件输出信号并被配置为产生调制电路输出信号。 霍尔元件调制电路用具有在最小频率和最大频率之间变化的调制频率的调制信号进行调制。

    DETERMINING ADDRESSES OF ELECTRICAL COMPONENTS ARRANGED IN A DAISY CHAIN
    6.
    发明申请
    DETERMINING ADDRESSES OF ELECTRICAL COMPONENTS ARRANGED IN A DAISY CHAIN 有权
    确定在DAISY链中安装的电气部件的地址

    公开(公告)号：US20120131231A1

    公开(公告)日：2012-05-24

    申请号：US13344959

    申请日：2012-01-06

    申请人： Gerardo Monreal

    发明人： Gerardo Monreal

    IPC分类号： G06F3/00

    CPC分类号： G06F13/37 ,  G06F13/4068

    摘要： In one aspect, a system includes electrical components arranged in a daisy chain that include a first electrical component disposed at a first end of the daisy chain and a second electrical component disposed at an opposite end of the daisy chain than the first end. Each of the first and second electrical components includes an input port, an output port and a common port. The input port of the first electrical component is coupled to one of a supply voltage port or ground and the common ports of the first and second electrical components are coupled to the other one of the supply voltage or the ground. An address of the second electrical component is determined before addresses of the other of the electrical components are determined, and the addresses determine a position of an electrical component with respect to the other of the electrical components.

    摘要翻译： 在一个方面，一种系统包括以菊链形式布置的电气部件，其包括设置在菊链的第一端的第一电气部件和布置在菊花链相对于第一端的相对端的第二电气部件。 第一和第二电气部件中的每一个包括输入端口，输出端口和公共端口。 第一电气部件的输入端口耦合到电源电压端口或接地中的一个，并且第一和第二电气部件的公共端口耦合到电源电压或地面中的另一个。 在确定另一个电气部件的地址之前确定第二电气部件的地址，并且该地址确定电气部件相对于另一个电气部件的位置。

    NON-VOLATILE PROGRAMMABLE MEMORY CELL AND MEMORY ARRAY
    7.
    发明申请
    NON-VOLATILE PROGRAMMABLE MEMORY CELL AND MEMORY ARRAY 有权
    非易失性可编程存储器单元和存储器阵列

    公开(公告)号：US20090323450A1

    公开(公告)日：2009-12-31

    申请号：US12164221

    申请日：2008-06-30

    申请人： Gerardo Monreal

    发明人： Gerardo Monreal

    IPC分类号： G11C17/16 ,  G11C8/00

    CPC分类号： G11C17/16

    摘要： A non-volatile one time programmable memory cell couples in series a two terminal fuse and a three terminal antifuse. The non-volatile one time programmable memory cell includes a memory cell write enable node and a memory cell output node. The non-volatile one time programmable memory cell includes fuse having a first node and a second node, and an antifuse having a trigger node, a first node, and a second node. The trigger node is coupled to the memory cell write enable node. The first node of the antifuse and the second node of the fuse are coupled to the memory cell output node. First and second voltages appearing at the memory cell output node are indicative of first and second binary states of the memory cell. A plurality of such memory cells can be included in a non-volatile programmable memory array. A non-volatile programmable memory cell capable of re-programming is also described.

    摘要翻译： 非易失性一次可编程存储器单元串联耦合两端保险丝和三端反熔丝。 非易失性一次性可编程存储器单元包括存储单元写使能节点和存储单元输出节点。 非易失性一次可编程存储单元包括具有第一节点和第二节点的熔丝，以及具有触发节点，第一节点和第二节点的反熔丝。 触发节点耦合到存储单元写使能节点。 反熔丝的第一节点和熔丝的第二节点耦合到存储单元输出节点。 出现在存储单元输出节点处的第一和第二电压指示存储器单元的第一和第二二进制状态。 多个这样的存储器单元可以被包括在非易失性可编程存储器阵列中。 还描述了能够重新编程的非易失性可编程存储器单元。

    Determining addresses of electrical components arranged in a daisy chain
    8.
    发明授权
    Determining addresses of electrical components arranged in a daisy chain 有权
    确定以菊花链方式布置的电气元件的地址

    公开(公告)号：US09552315B2

    公开(公告)日：2017-01-24

    申请号：US13344959

    申请日：2012-01-06

    申请人： Gerardo Monreal

    发明人： Gerardo Monreal

    IPC分类号： G06F3/00 ,  G06F13/37 ,  G06F13/40 ,  G06F13/00

    CPC分类号： G06F13/37 ,  G06F13/4068

    摘要： In one aspect, a system includes electrical components arranged in a daisy chain that include a first electrical component disposed at a first end of the daisy chain and a second electrical component disposed at an opposite end of the daisy chain than the first end. Each of the first and second electrical components includes an input port, an output port and a common port. The input port of the first electrical component is coupled to one of a supply voltage port or ground and the common ports of the first and second electrical components are coupled to the other one of the supply voltage or the ground. An address of the second electrical component is determined before addresses of the other of the electrical components are determined, and the addresses determine a position of an electrical component with respect to the other of the electrical components.

    摘要翻译： 在一个方面，一种系统包括以菊链形式布置的电气部件，其包括设置在菊链的第一端的第一电气部件和布置在菊链的相对端的第二电气部件。 第一和第二电气部件中的每一个包括输入端口，输出端口和公共端口。 第一电气部件的输入端口耦合到电源电压端口或接地中的一个，并且第一和第二电气部件的公共端口耦合到电源电压或地面中的另一个。 在确定另一个电气部件的地址之前确定第二电气部件的地址，并且该地址确定电气部件相对于另一个电气部件的位置。