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公开(公告)号：US20160356820A1
公开(公告)日：2016-12-08
申请号：US15175722
申请日：2016-06-07
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
IPC: G01R15/20
CPC classification number: G01R15/202 , G01R15/205
Abstract: A current sensor chip and systems and methods for calibrating thereof are provided. The current sensor chip includes a first magnetic field sensor element configured to generate a first analog sensor signal representing a magnetic field caused by a primary current passing through an external primary conductor, an analog-to-digital converter coupled to the first magnetic field sensor element and configured to generate a digital sensor signal based on the first analog sensor signal, a digital signal processor coupled to the analog-to-digital converter to receive the digital sensor signal and configured to determine, based on the digital sensor signal and based on calibration parameters stored in memory, a corresponding current measurement signal that represents the primary current, and an external output pin coupled to the first magnetic field sensor element to receive the first analog sensor signal or an analog signal derived therefrom by analog signal processing.
Abstract translation: 提供了一种电流传感器芯片及其校准系统和方法。 电流传感器芯片包括第一磁场传感器元件，其被配置为产生表示由通过外部主导体的初级电流引起的磁场的第一模拟传感器信号，耦合到第一磁场传感器元件的模数转换器 并且被配置为基于所述第一模拟传感器信号生成数字传感器信号;耦合到所述模数转换器的数字信号处理器，用于接收所述数字传感器信号并且被配置为基于所述数字传感器信号并且基于校准 存储在存储器中的参数，表示初级电流的对应的电流测量信号，以及耦合到第一磁场传感器元件以接收第一模拟传感器信号的外部输出引脚或通过模拟信号处理从其导出的模拟信号。
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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。
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公开(公告)号：US20240230735A9
公开(公告)日：2024-07-11
申请号：US18487604
申请日：2023-10-16
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
IPC: G01R27/08
CPC classification number: G01R27/08
Abstract: The present disclosure relates to an apparatus for measuring a first electric current in a first printed conductor of a printed circuit board, which also includes a second printed conductor, wherein the ratio of electrical resistances between the first and second printed conductors is known. The apparatus includes a device for measuring a first electric voltage across the first printed conductor based on the first electric current in the first printed conductor, a device for injecting a known second electric current into the second printed conductor, a device for measuring a second electric voltage across the second printed conductor based on the known second electric current in the second printed conductor, and a device for determining the first electric current based on the first electric voltage, the second electric voltage, the known second electric current and the known ratio of electrical resistances between the first and second printed conductors.
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公开(公告)号：US20240110839A1
公开(公告)日：2024-04-04
申请号：US18473546
申请日：2023-09-25
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
CPC classification number: G01L1/2281 , G01L1/18 , G01L1/2293
Abstract: A semiconductor circuit arrangement includes a substrate, at least two first stress-sensitive elements in a first region of the substrate and at least two second stress-sensitive elements in a second region of the substrate. The first stress-sensitive elements each have an electrical characteristic which is dependent on a first component and a second component of a mechanical stress tensor in the first region. The second stress-sensitive elements each have an electrical characteristic which is dependent on a first component and a second component of a mechanical stress tensor in the second region. The semiconductor circuit arrangement includes a measuring circuit configured, based on the respective electrical characteristics of the first stress-sensitive elements and of the second stress-sensitive elements, to determine a stress difference between the first components in the first and second regions and a stress difference between the second components in the first and second regions.
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公开(公告)号：US20220057281A1
公开(公告)日：2022-02-24
申请号：US16996073
申请日：2020-08-18
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: The described techniques are directed to inductive torque sensors that implement independent target coil and pickup coil systems. By utilizing the various principles of inductive angle sensors, and as a result of the specific physical arrangement of target coils, the inductive torque sensor may independently obtain a rotational position (i.e., mechanical angle) of the rotatable input shaft via one pickup coil system, and a rotational position (i.e., mechanical angle) of the rotatable output shaft via another pickup coil system. Combiner circuitry is also provided to calculate the torsion angle using the signals induced in each of two separate pickup coil systems. By using different k-fold symmetry periodicities in the target coils with respect to the coil configurations, the inductive torque sensor advantageously reduces or eliminates mutual coupling between the different target coil systems and provide robustness to stray or external electromagnetic fields.
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Patent Agency Ranking
公开(公告)号：US20210389392A1
公开(公告)日：2021-12-16
申请号：US17462475
申请日：2021-08-31
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: An apparatus for magnetic field detection includes a power supply and a plurality of magnetic field sensitive devices including at least first, second, and third magnetic field sensitive devices. The first to third magnetic field sensitive devices are coupled to each other and to the power supply such that a first supply current path runs through the first magnetic field sensitive device and not through the second magnetic field sensitive device, a second supply current path runs through the second magnetic field sensitive device and not through the first magnetic field sensitive device, and the first and second current paths run through the third magnetic field sensitive device. An internal resistance of the third magnetic field sensitive device is smaller than both an internal resistance of the first magnetic field sensitive device and an internal resistance of the second magnetic field sensitive device.
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公开(公告)号：US20210063206A1
公开(公告)日：2021-03-04
申请号：US17003186
申请日：2020-08-26
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: An inductive angle sensor for determining a rotational position of a rotor relative to a stator includes an exciter coil, at least one pickup coil arrangement having an m-fold symmetry and at least one conductive target having an m-fold symmetry. The exciter coil may excite the conductive target which, in turn, may induce an induced signal in the pickup coil arrangement. A signal analysis device may determine the rotational position of the rotor based on the induced signal. The inductive angle sensor may comprise a second pickup coil arrangement having an n-fold symmetry and a second conductive target having an n-fold symmetry. The exciter coil may excite the second conductive target which, in turn, may induce a second induced signal in the second pickup coil arrangement. The signal analysis device may determine the rotational position of the rotor based on the two induced signals according to a Vernier principle.
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公开(公告)号：US20200264246A1
公开(公告)日：2020-08-20
申请号：US16865992
申请日：2020-05-04
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: Sensor devices, systems and methods are provided, including a first magnetic sensor configured to measure a first magnetic field in a first frequency range and output a first sensor signal based on the measured first magnetic field, a second magnetic sensor configured to measure a second magnetic field in a second frequency range and output a second sensor signal based on the measured second magnetic field, and a sensor circuit configured to receive the first and the second sensor signals, combine the first and the second sensor signals, and output a combined sensor signal. The first magnetic sensor and the second magnetic sensor are configured to share a cross-over frequency.
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公开(公告)号：US20200225297A1
公开(公告)日：2020-07-16
申请号：US16740929
申请日：2020-01-13
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
Abstract: A sensing element is provided including a magnetic sensor that detects a first magnetic field component, at least one AC-magnetic field generator that applies at least one additional magnetic field component at a given frequency to the magnetic sensor, where the first magnetic field component and the at least one additional magnetic field component are orthogonal to each other, and at least one demodulator using the given frequency to determine a sensitivity of the sensing element respective to the at least one additional magnetic field component. Also, several methods of operating such sensing element are provided.
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公开(公告)号：US20200018589A1
公开(公告)日：2020-01-16
申请号：US16459898
申请日：2019-07-02
Applicant: Infineon Technologies AG
Inventor： Udo AUSSERLECHNER
IPC: G01B7/30
Abstract: A device comprises a permanent magnet, a magnetic field sensor, and an evaluation circuit. The permanent magnet has a body extending along a path, wherein in a movement travel region the permanent magnet has a continuous north pole and a continuous south pole and is magnetized in such a way that the magnetization direction along the path rotates continuously around the path. The permanent magnet is arranged in an inner spatial region and the at least one sensor is arranged in an outer spatial region, wherein in cross section perpendicular to the path the inner spatial region and the outer spatial region are separated from one another by an outwardly convex line. The magnetic field sensor is configured to detect the magnetic field generated by the permanent magnet. The evaluation circuit is configured to determine the position of the permanent magnet using the detected magnetic field.
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