-
61.发明授权Magnetic field sensors and systems with sensor circuit portions having different bias voltages and frequency ranges 有权具有不同偏置电压和频率范围的传感器电路部分的磁场传感器和系统公开(公告)号：US09488700B2
公开(公告)日：2016-11-08
申请号：US14025115
申请日：2013-09-12
Applicant: Infineon Technologies AG
Inventor： Mario Motz
CPC classification number: G01R33/07 , G01R33/0029 , G01R33/06 , G01R33/095
Abstract: Embodiments relate to Hall effect sensor circuits and devices that provide improved performance, such as reduced residual offset errors and/or improved S/N ratios. In an embodiment, a Hall effect sensor circuit comprises two circuit portions, a first with a higher bandwidth for higher frequencies and having an improved S/N ratio, and a second with a lower bandwidth for lower frequencies and having low residual offset. First and second Hall plates or devices are incorporated in the first and second circuit portions. The first Hall plate can be operated with a larger bias voltage and a larger, high-pass-filtered signal bandwidth, while the second Hall plate can be operated with a smaller bias voltage and a smaller, low-pass-filtered signal bandwidth. Individual output signals from each of the first and second Hall plates can be scaled and combined to provide an overall output signal with the benefits of each circuit portion, including reduced residual offset error and negligible increased noise.
Abstract translation: 实施例涉及提供改善的性能的霍尔效应传感器电路和装置，例如减少的残余偏移误差和/或改善的S / N比。 在一个实施例中，霍尔效应传感器电路包括两个电路部分，第一具有较高频带的带宽，具有改善的S / N比，第二电路部分具有较低频带的较低带宽，并具有较低的残余偏移。 第一和第二霍尔板或装置并入第一和第二电路部分。 第一个霍尔板可以以较大的偏置电压和较大的高通滤波信号带宽工作，而第二个霍尔板可以以较小的偏置电压和较小的低通滤波信号带宽工作。 可以对来自第一和第二霍尔板的每个的各个输出信号进行缩放和组合，以提供具有每个电路部分的益处的总体输出信号，包括减小的残余偏移误差和可忽略的增加的噪声。
-
公开(公告)号：US09437653B2
公开(公告)日：2016-09-06
申请号：US14491035
申请日：2014-09-19
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Mario Motz
IPC: G01B7/16 , H01L27/20 , G01L1/22 , G01L1/18 , H01L41/047 , H01L41/113
CPC classification number: H01L27/20 , G01B7/18 , G01L1/18 , G01L1/2293 , H01L41/0475 , H01L41/1132
Abstract: Embodiments relate to stress sensors and methods of sensing stress. In an embodiment, a stress sensor comprises a vertical resistor. The vertical resistor can comprise, for example, an n-type resistor and can have various operating modes. The various operating modes can depend on a coupling configuration of terminals of the resistor and can provide varying piezo-coefficients with very similar temperature coefficients of resistances. Comparisons of resistances and piezo-coefficients in differing operating modes can provide a measure of mechanical stresses acting on the device.
Abstract translation: 实施例涉及应力传感器和感测应力的方法。 在一个实施例中，应力传感器包括垂直电阻器。 垂直电阻器可以包括例如n型电阻器，并且可以具有各种操作模式。 各种操作模式可以取决于电阻器的端子的耦合配置，并且可以提供具有非常相似的电阻温度系数的变化的压电系数。 电阻和压电系数在不同操作模式下的比较可以提供作用在器件上的机械应力的量度。
-
公开(公告)号：US09423471B2
公开(公告)日：2016-08-23
申请号：US14833216
申请日：2015-08-24
Applicant: Infineon Technologies AG
Inventor： Udo Ausserlechner , Mario Motz
CPC classification number: G01R33/077 , G01R33/07 , G01R33/075 , H01L27/22 , H01L43/065
Abstract: One embodiment of the present invention relates to a vertical Hall-effect device. The device includes at least two supply terminals arranged to supply electrical energy to the first Hall-effect region; and at least one Hall signal terminal arranged to provide a first Hall signal from the first Hall-effect region. The first Hall signal is indicative of a magnetic field which is parallel to the surface of the semiconductor substrate and which acts on the first Hall-effect region. One or more of the at least two supply terminals or one or more of the at least one Hall signal terminal comprises a force contact and a sense contact.
-
公开(公告)号：US09419611B2
公开(公告)日：2016-08-16
申请号：US14809463
申请日：2015-07-27
Applicant: Infineon Technologies AG
Inventor： Mario Motz
CPC classification number: H03K17/9517 , G01D5/142 , G01P3/489 , G01P13/00 , G01R17/02 , G01R19/0092 , G01R33/0029 , H03K5/2472 , H03K17/94
Abstract: One embodiment of the present invention relates to a method and apparatus to perform a low power activation of a system by measuring the slope of a digital signal corresponding to a motion sensor measurement value. In one embodiment, a low power activation circuit is coupled to magnetic motion sensor configured to output a magnetic signal proportional to a measured magnetic field. The low power activation circuit may comprise a digital tracking circuit configured to provide a digital signal that tracks the magnetic field and a difference detector configured to detect a difference between a current digital signal and a prior digital signal stored in a digital storage means. If the detected difference is larger than a digital reference level, an activation signal is output to awaken a system from a sleep mode.
-
公开(公告)号：US20160156365A1
公开(公告)日：2016-06-02
申请号：US15018127
申请日：2016-02-08
Applicant: Infineon Technologies AG
Inventor： Wolfgang Scherr , Mario Motz
Abstract: A device for converting analog to digital is disclosed. The device includes a dual mode converter and a control unit. The dual mode converter has a coarse mode and a fine mode. The dual mode converter is configured to receive an input signal and convert the input signal to a digital output having a selected resolution. The control unit is coupled to the dual mode converter and is configured to operate the converter in the coarse mode until a coarse approximation is obtained and to operate the converter in the fine mode until a fine approximation is obtained having the selected resolution. The fine mode includes multi-bit incremental tracking.
-
Patent Agency Ranking
公开(公告)号：US09354084B2
公开(公告)日：2016-05-31
申请号：US14083643
申请日：2013-11-19
Applicant: INFINEON TECHNOLOGIES AG
Inventor： Udo Ausserlechner , Mario Motz
Abstract: Embodiments relate to magnetic field angle sensing systems and methods. In an embodiment, a magnetic field angle sensing system configured to determine a rotational position of a magnetic field source around an axis, comprises N sensor devices arranged in a circle concentric to an axis, wherein N>1 and the sensor devices are spaced apart from one another by about (360/N) degrees along the circle, each sensor device comprising a magnetic field sensing device having a sensitivity plane comprising at least one reference direction of the magnetic field sensing device, wherein the magnetic field sensing device is sensitive to a magnetic field component in the sensitivity plane and configured to provide a signal related to a (co)sine of an angle between the reference direction and the magnetic field in the sensitivity plane; and circuitry coupled to the N sensor devices and configured to provide a signal indicative of a rotational position of a magnetic field source around the axis determined by combining the signals from the magnetic field sensing devices of the N sensor devices.
Abstract translation: 实施例涉及磁场角度感测系统和方法。 在一个实施例中，被配置为确定围绕轴线的磁场源的旋转位置的磁场角度感测系统包括布置成与轴线同心的圆的N个传感器装置，其中N≥1且传感器装置与 沿着圆周彼此大约（360 / N）度，每个传感器装置包括具有包括磁场感测装置的至少一个参考方向的灵敏度平面的磁场感测装置，其中磁场感测装置对 灵敏度平面中的磁场分量，并且被配置为提供与灵敏度平面中的参考方向和磁场之间的角度的（共）正弦相关的信号; 以及电路，其耦合到所述N个传感器设备并且被配置为提供指示围绕所述轴确定的磁场源的旋转位置的信号，所述磁场源组合来自所述N个传感器设备的所述磁场感测设备的信号。
-
公开(公告)号：US20160126986A1
公开(公告)日：2016-05-05
申请号：US14924895
申请日：2015-10-28
Applicant: Infineon Technologies AG
Inventor： Christof Bodner , Mario Motz , Wolfgang Scherr
CPC classification number: H04B1/0475 , H04B1/0483
Abstract: Devices and methods are provided where a first signal is provided via an interface, and a second signal is provided related to the suitability of the first signal for transmission via the interface.
Abstract translation: 提供了经由接口提供第一信号的设备和方法，并且提供与通过接口传输的第一信号的适合性相关的第二信号。
-
公开(公告)号：US09203363B2
公开(公告)日：2015-12-01
申请号：US14476888
申请日：2014-09-04
Applicant: Infineon Technologies AG
Inventor： Mario Motz , Manfred Bresch
CPC classification number: H03F3/38 , H03F1/02 , H03F3/387 , H03F3/45475 , H03F3/45977 , H03F2200/333 , H03F2200/411
Abstract: The present disclosure relate to a sensor system having a low offset error. In some embodiments, the sensor system comprises a sensor configured to generate a sensor signal, which is provided to a main signal path having a first chopping correction circuit and a second chopping correction circuit. The first and second chopping correction circuit chop the sensor signal at first and second frequencies to reduce offset errors, but in doing so generate first and second chopping ripple errors. A first digital offset feedback loop generates a first compensation signal, which is fed back into the main signal path to mitigate the first chopping ripple error. A second digital offset feedback loop generates a second compensation signal, which is fed back into the main signal path to mitigate the second chopping ripple error.
Abstract translation: 本公开涉及具有低偏移误差的传感器系统。 在一些实施例中，传感器系统包括被配置为产生传感器信号的传感器，传感器信号被提供给具有第一斩波校正电路和第二斩波校正电路的主信号路径。 第一和第二斩波校正电路以第一和第二频率切断传感器信号以减少偏移误差，但是这样做产生第一和第二斩波纹差。 第一数字偏移反馈环路产生第一补偿信号，其被反馈到主信号路径以减轻第一斩波纹误差。 第二数字偏移反馈环路产生第二补偿信号，其被反馈到主信号路径以减轻第二斩波纹差。
-
69.发明授权公开(公告)号：US09124281B2
公开(公告)日：2015-09-01
申请号：US14185961
申请日：2014-02-21
Applicant: Infineon Technologies AG
Inventor： Mario Motz
CPC classification number: H03M1/06 , G01R33/0029 , G01R33/072 , H03M1/0836 , H03M1/12 , H03M1/48
Abstract: One embodiment of the present invention relates to a magnetic sensor circuit having a magnetic field sensor device configured to generate a digital signal proportional to an applied magnetic field. An analog-to-digital converter converts the analog signal to a digital signal that is provided to a digital signal processing unit, which is configured to digitally track the analog output signal. The digital tracking unit comprises a delay removal circuitry configured to generate a plurality of digital signal component corresponding to a chopping phase. A non-delayed offset compensated digital output signal may be generated within the chopping phase by mathematically operating upon (e.g., adding or subtracting) the plurality of digital signal components, generated by the delay removal circuitry.
Abstract translation: 本发明的一个实施例涉及一种磁传感器电路，其具有被配置为产生与所施加的磁场成比例的数字信号的磁场传感器装置。 模数转换器将模拟信号转换为提供给数字信号处理单元的数字信号，数字信号处理单元被配置为数字跟踪模拟输出信号。 数字跟踪单元包括延迟去除电路，其经配置以产生对应于斩波相位的多个数字信号分量。 在延迟去除电路产生的多个数字信号分量（例如，增加或减去）之后，可以在斩波阶段内产生非延迟偏移补偿数字输出信号。
-
公开(公告)号：US20150160325A1
公开(公告)日：2015-06-11
申请号：US14598398
申请日：2015-01-16
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER , Mario Motz
CPC classification number: G01R35/00 , G01D3/036 , G01D5/145 , G01L1/12 , G01R33/07 , G01R33/072 , G01R33/091
Abstract: Embodiments relate to reducing offset error in sensor systems. In embodiments, the sensitivity and offset of a sensor depend differently on some parameter, e.g. voltage, such that operating the sensor at two different values of the parameter can cancel the offset error. Embodiments can have applicability to stress sensors, Hall plates, vertical Hall devices, magnetoresistive sensors and others.
Abstract translation: 实施例涉及减少传感器系统中的偏移误差。 在实施例中，传感器的灵敏度和偏移量取决于某些参数，例如， 电压，使得以两个不同的参数值操作传感器可以消除偏移误差。 实施例可以应用于应力传感器，霍尔板，垂直霍尔装置，磁阻传感器等。
-
-
-
-
-
-
-
-
-
Search Results
122
records
(took 0.024 seconds)
