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公开(公告)号：US08669761B2
公开(公告)日：2014-03-11
申请号：US12969033
申请日：2010-12-15
CPC分类号： G01R33/0035 , G01R33/0017
摘要： A sensor circuit is configured and operated in the presence of interference. In connection with various example embodiments, a stray magnetic field is sensed with current sensors that also respectively sense current-induced magnetic fields generated by current flowing in opposing directions through different portions of a conductor. The current-induced magnetic fields and the stray magnetic field are coplanar, and the current sensors are arranged such that a portion of the output from each current sensor corresponding to the stray magnetic field is canceled when the sensor outputs are combined.
摘要翻译： 传感器电路在有干扰的情况下被配置和操作。 结合各种示例实施例，用电流传感器感测杂散磁场，电流传感器还分别感测通过导体的不同部分沿相反方向流动的电流产生的电流感应磁场。 电流感应磁场和杂散磁场是共面的，并且电流传感器被布置成使得当传感器输出组合时，来自每个电流传感器的对应于杂散磁场的输出的一部分被消除。
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公开(公告)号：US08648591B2
公开(公告)日：2014-02-11
申请号：US13020721
申请日：2011-02-03
CPC分类号： G01B7/30 , G01D5/147 , G01R33/0029 , G01R33/0082
摘要： A magnetoresistive angular sensor and sensing method, in which an external magnetic field generator is used to provide a first mode in which a dc external magnetic field is provided in a predetermined direction and which dominates over the magnetic field generated by the input device being sensed. In a second mode, the external magnetic field is smaller. The angular sensor arrangement outputs from the two modes are combined, and this enables the input device angular orientation to be determined with offset voltage compensation.
摘要翻译： 一种磁阻角度传感器和感测方法，其中使用外部磁场发生器来提供第一模式，其中在预定方向上提供直流外部磁场并且支配在被感测的输入装置产生的磁场上。 在第二模式中，外部磁场较小。 来自两种模式的角度传感器装置输出被组合，这使输入装置的角度方向能够通过失调电压补偿来确定。
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公开(公告)号：US20120153942A1
公开(公告)日：2012-06-21
申请号：US12969033
申请日：2010-12-15
CPC分类号： G01R33/0035 , G01R33/0017
摘要： A sensor circuit is configured and operated in the presence of interference. In connection with various example embodiments, a stray magnetic field is sensed with current sensors that also respectively sense current-induced magnetic fields generated by current flowing in opposing directions through different portions of a conductor. The current-induced magnetic fields and the stray magnetic field are coplanar, and the current sensors are arranged such that a portion of the output from each current sensor corresponding to the stray magnetic field is canceled when the sensor outputs are combined.
摘要翻译： 传感器电路在有干扰的情况下被配置和操作。 结合各种示例实施例，用电流传感器感测杂散磁场，电流传感器还分别感测通过导体的不同部分沿相反方向流动的电流产生的电流感应磁场。 电流感应磁场和杂散磁场是共面的，并且电流传感器被布置成使得当传感器输出组合时，来自每个电流传感器的对应于杂散磁场的输出的一部分被消除。
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公开(公告)号：US20120025819A1
公开(公告)日：2012-02-02
申请号：US13191730
申请日：2011-07-27
申请人： Kim Phan Le , Frederik Willem Maurits Vanhelmont , Jaap Ruigrok , Andreas Bernardus Maria Jansman , Robert Hendrikus Margaretha van Veldhoven
发明人： Kim Phan Le , Frederik Willem Maurits Vanhelmont , Jaap Ruigrok , Andreas Bernardus Maria Jansman , Robert Hendrikus Margaretha van Veldhoven
IPC分类号： G01R33/02
CPC分类号： G01R33/09 , G01R33/096
摘要： A magnetoresistive sensor comprising first and second magnetoresistive elements is disclosed. Each magnetoresistive element is coupled at a respective first end to a common ground terminal and comprises one or more magnetoresistive segments, each overlying a corresponding segment of an excitation coil. The resistance of the magnetoresistive segments in each of the first and second magnetoresistive elements is the same and the resistance of the segments of the excitation coil corresponding to the first magnetoresistive element is the same as the resistance of the segments of the excitation coil corresponding to the second magnetoresistive element.
摘要翻译： 公开了包括第一和第二磁阻元件的磁阻传感器。 每个磁阻元件在相应的第一端处耦合到公共接地端子，并且包括一个或多个磁阻片段，每个磁阻片段覆盖激励线圈的相应片段。 第一和第二磁阻元件中的每一个中的磁阻部分的电阻相同，并且与第一磁阻元件相对应的激励线圈的段的电阻与对应于第一磁阻元件的激励线圈的段的电阻相同 第二磁阻元件。
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5.发明授权Magnetic field sensor for sensing rotation a reference component about the axis of rotation that is independent of alignment between the axis of rotation and the sensors 有权磁场传感器，用于感测旋转基于旋转轴线的参考分量，其独立于旋转轴线与传感器之间的对准公开(公告)号：US09062989B2
公开(公告)日：2015-06-23
申请号：US12968963
申请日：2010-12-15
CPC分类号： G01D5/145 , G01D5/2451
摘要： A sensor circuit is configured for operation under conditions susceptible to misalignment or movement. In connection with various example embodiments, an alignment-tolerant sensor arrangement includes a reference component and first and second magnetic sensors. The reference component influences a magnetic field as a function of a position of the reference component, such as via the positioning of a magnetic type of component. The first magnetic sensor is aligned with a first magnetic field sensitivity direction, and exhibits an electrical response to the presence of the magnetic field. The second magnetic sensor is aligned with a first magnetic field sensitivity direction and is configured to exhibit an electrical response to the presence of the magnetic field. The first and second magnetic field sensitivity directions being offset from one another to facilitate detection of magnetic fields at different relative alignments between the reference component and the first and second magnetic sensors.
摘要翻译： 传感器电路被配置为在易于偏移或移动的条件下操作。 结合各种示例实施例，对准容差传感器装置包括参考部件和第一和第二磁性传感器。 参考部件例如通过定位磁性类型的部件而影响作为参考部件的位置的函数的磁场。 第一磁传感器与第一磁场灵敏度方向对准，并且对磁场的存在表现出电响应。 第二磁传感器与第一磁场灵敏度方向对准并且被配置为对磁场的存在呈现电响应。 第一和第二磁场灵敏度方向彼此偏移，以便于在参考部件和第一和第二磁性传感器之间的不同相对对准处检测磁场。
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公开(公告)号：US20120153946A1
公开(公告)日：2012-06-21
申请号：US12968963
申请日：2010-12-15
IPC分类号： G01R33/02
CPC分类号： G01D5/145 , G01D5/2451
摘要： A sensor circuit is configured for operation under conditions susceptible to misalignment or movement. In connection with various example embodiments, an alignment-tolerant sensor arrangement includes a reference component and first and second magnetic sensors. The reference component influences a magnetic field as a function of a position of the reference component, such as via the positioning of a magnetic type of component. The first magnetic sensor is aligned with a first magnetic field sensitivity direction, and exhibits an electrical response to the presence of the magnetic field. The second magnetic sensor is aligned with a first magnetic field sensitivity direction and is configured to exhibit an electrical response to the presence of the magnetic field. The first and second magnetic field sensitivity directions being offset from one another to facilitate detection of magnetic fields at different relative alignments between the reference component and the first and second magnetic sensors.
摘要翻译： 传感器电路被配置为在易于偏移或移动的条件下操作。 结合各种示例实施例，对准容差传感器装置包括参考部件和第一和第二磁性传感器。 参考部件例如通过定位磁性类型的部件而影响作为参考部件的位置的函数的磁场。 第一磁传感器与第一磁场灵敏度方向对准，并且对磁场的存在表现出电响应。 第二磁传感器与第一磁场灵敏度方向对准并且被配置为对磁场的存在呈现电响应。 第一和第二磁场灵敏度方向彼此偏移，以便于在参考部件和第一和第二磁性传感器之间的不同相对对准处检测磁场。
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公开(公告)号：US08587299B2
公开(公告)日：2013-11-19
申请号：US12949841
申请日：2010-11-19
CPC分类号： G01R33/09 , G01R33/096
摘要： An AMR sensor, comprises at least first and second AMR sensor elements to which opposite bias fields are applied. The first and second AMR sensor element outputs are combined to derive a sensor response which is substantially anti-symmetric in the region close to zero external magnetic field. This arrangement shifts the zero detection point of the AMR sensor elements away from a maximum of the response curve, so that sensitivity in proximity to a zero input field is obtained. To overcome the problem that the response is not anti-symmetric, the signals from (at least) two sensor elements are combined.
摘要翻译： AMR传感器包括至少第一和第二AMR传感器元件，相应的偏置场被施加到该传感器元件。 组合第一和第二AMR传感器元件输出以导出在接近零的外部磁场的区域中基本上反对称的传感器响应。 该布置使得AMR传感器元件的零点检测点远离响应曲线的最大值，从而获得接近零输入场的灵敏度。 为了克服响应不是反对称的问题，来自（至少）两个传感器元件的信号被组合。
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公开(公告)号：US08680857B2
公开(公告)日：2014-03-25
申请号：US13191730
申请日：2011-07-27
申请人： Kim Phan Le , Frederik Willem Maurits Vanhelmont , Jaap Ruigrok , Andreas Bernardus Maria Jansman , Robert Hendrikus Margaretha van Veldhoven
发明人： Kim Phan Le , Frederik Willem Maurits Vanhelmont , Jaap Ruigrok , Andreas Bernardus Maria Jansman , Robert Hendrikus Margaretha van Veldhoven
IPC分类号： G01R33/02
CPC分类号： G01R33/09 , G01R33/096
摘要： A magnetoresistive sensor comprising first and second magnetoresistive elements is disclosed. Each magnetoresistive element is coupled at a respective first end to a common ground terminal and comprises one or more magnetoresistive segments, each overlying a corresponding segment of an excitation coil. The resistance of the magnetoresistive segments in each of the first and second magnetoresistive elements is the same and the resistance of the segments of the excitation coil corresponding to the first magnetoresistive element is the same as the resistance of the segments of the excitation coil corresponding to the second magnetoresistive element.
摘要翻译： 公开了包括第一和第二磁阻元件的磁阻传感器。 每个磁阻元件在相应的第一端处耦合到公共接地端子，并且包括一个或多个磁阻片段，每个磁阻片段覆盖激励线圈的相应片段。 第一和第二磁阻元件中的每一个中的磁阻部分的电阻相同，并且与第一磁阻元件相对应的激励线圈的段的电阻与对应于第一磁阻元件的激励线圈的段的电阻相同 第二磁阻元件。
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公开(公告)号：US08664941B2
公开(公告)日：2014-03-04
申请号：US13217155
申请日：2011-08-24
IPC分类号： G01B7/30
CPC分类号： G01R33/09 , G01R33/0017 , G01R33/0029
摘要： A magnetic sensing system, including: a magnetic component proximate a movable mechanical component; and a magnetic sensor configured to determine a movement of the mechanical component based on a magnetic field produced by the magnetic component. The magnetic sensor includes: a low-offset magnetic sensing element; a high-sensitivity magnetic sensing element; and an offset compensation circuit configured to: determine a zero-crossing of a sensing field from an output of the low-offset magnetic sensing element; sample an offset value of the high-sensitivity magnetic sensing element at the zero-crossing; and subtract the offset value from an output of the high-sensitivity magnetic sensing element.
摘要翻译： 一种磁传感系统，包括：靠近可移动机械部件的磁性部件; 以及磁传感器，其构造成基于由所述磁性部件产生的磁场来确定所述机械部件的移动。 磁传感器包括：低偏移磁感应元件; 高灵敏度磁感应元件; 以及偏移补偿电路，被配置为：从所述低偏移磁感测元件的输出确定感测场的过零点; 在过零点处采样高灵敏度磁敏元件的偏移值; 并从高灵敏度磁感测元件的输出中减去偏移值。
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公开(公告)号：US08269660B2
公开(公告)日：2012-09-18
申请号：US12956220
申请日：2010-11-30
IPC分类号： H03M1/12
CPC分类号： H03M1/502
摘要： Disclosed is a circuit for converting an analog input signal into a digital code (b1-bN), comprising a delay circuit adapted to generate a periodical signal having a delay as a function of the analog input signal value; and a quantization stage for converting the delayed periodical signal into the digital code. The circuit converts an analog voltage or current into the time-domain, thus facilitating the implementation of high-speed analog-to-digital converters into submicron technologies, in particular CMOS technologies. A method of converting an analog input signal into a digital code (b1-bN) is also disclosed.
摘要翻译： 公开了一种用于将模拟输入信号转换为数字码（b1-bN）的电路，包括适于生成具有作为模拟输入信号值的函数的延迟的周期信号的延迟电路; 以及用于将延迟周期信号转换成数字码的量化级。 电路将模拟电压或电流转换为时域，从而有助于将高速模数转换器实现为亚微米技术，特别是CMOS技术。 还公开了将模拟输入信号转换为数字码（b1-bN）的方法。
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