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    Magnetic field sensor
    21.
    发明授权
    Magnetic field sensor 有权

    公开(公告)号：US11346913B2

    公开(公告)日：2022-05-31

    申请号：US16571991

    申请日：2019-09-16

    Applicant: Infineon Technologies AG

    Inventor： Mario Motz ,  Wolfgang Scherr

    IPC: G01R35/00 ,  G01R33/07

    Abstract: Devices and methods are provided where switches associated with a magnetic field sensor are used to provide error information. In particular, a device is provided that includes a magnetic field sensor, a plurality of switches associated with the magnetic field sensor, and a control circuit configured to control the plurality of switches and to provide at least one signal indicative of a fault based on operation of the switches.

    Electric devices, integrated circuits, and methods for monitoring voltages
    22.
    发明授权
    Electric devices, integrated circuits, and methods for monitoring voltages 有权

    公开(公告)号：US11022991B2

    公开(公告)日：2021-06-01

    申请号：US15876315

    申请日：2018-01-22

    Applicant: Infineon Technologies AG

    Inventor： Mario Motz ,  Umberto Aracri ,  Alessandro Michelutti

    IPC: G01R19/165 ,  G05F1/571 ,  G01K7/01 ,  G05F3/30

    Abstract: An electrical device includes a power supply circuit configured to provide a first voltage and a second voltage, and a first verification circuit configured to derive a first and a second internal voltage from the first voltage, to compare the first and second internal voltages, and to generate a first output signal based on the comparison. The electrical device includes a second verification circuit including a first input terminal for the first voltage and a second input terminal for the second voltage, and configured to compare the first and second voltages and to generate a second output signal based on the comparison. Furthermore, the electrical device includes a combination circuit configured to generate a third output signal if the first output signal or the second output signal is indicative of the first voltage or the second voltage being outside a tolerance range.

    Sensor self-diagnostics using multiple signal paths
    25.
    发明授权
    Sensor self-diagnostics using multiple signal paths 有权

    公开(公告)号：US10514410B2

    公开(公告)日：2019-12-24

    申请号：US16046093

    申请日：2018-07-26

    Applicant: Infineon Technologies AG

    Inventor： Friedrich Rasbornig ,  Mario Motz ,  Dirk Hammerschmidt ,  Ferdinand Gastinger ,  Bernhard Schaffer ,  Wolfgang Granig

    IPC: G01R31/00 ,  G01R31/26 ,  G01R31/28 ,  G01D3/08 ,  B60T8/88

    Abstract: Embodiments relate to systems and methods for sensor self-diagnostics using multiple signal paths. In an embodiment, the sensors are magnetic field sensors, and the systems and/or methods are configured to meet or exceed relevant safety or other industry standards, such as SIL standards. For example, a monolithic integrated circuit sensor system implemented on a single semiconductor ship can include a first sensor device having a first signal path for a first sensor signal on a semiconductor chip; and a second sensor device having a second signal path for a second sensor signal on the semiconductor chip, the second signal path distinct from the first signal path, wherein a comparison of the first signal path signal and the second signal path signal provides a sensor system self-test.

    Stress compensated oscillator circuitry and integrated circuit using the same
    26.
    发明授权
    Stress compensated oscillator circuitry and integrated circuit using the same 有权

    公开(公告)号：US10333463B2

    公开(公告)日：2019-06-25

    申请号：US15042276

    申请日：2016-02-12

    Applicant: Infineon Technologies AG

    Inventor： Mario Motz

    IPC: G01D3/02 ,  G01L1/00 ,  G01L1/14 ,  H02N1/00 ,  H03B5/04 ,  H03L1/02 ,  H03K3/0231 ,  H03B5/30

    Abstract: A stress compensated oscillator circuitry comprises a sensor arrangement for providing a sensor output signal SSensor, wherein the sensor output signal SSensor is based on an instantaneous stress or strain component σ in the semiconductor substrate, a processing arrangement for processing the sensor output signal SSensor and providing a control signal SControl depending on the instantaneous stress or strain component σ in the semiconductor substrate, and an oscillator arrangement for providing an oscillator output signal Sosc having an oscillator frequency fosc based on the control signal SControl, wherein the control signal SControl controls the oscillator output signal Sosc, and wherein the control signal SControl reduces the influence of the instantaneous stress or strain component σ in the semiconductor substrate onto the oscillator output signal Sosc, so that the oscillator circuitry provides a stress compensated oscillator output signal.

    Magnetic sensor
    27.
    发明授权
    Magnetic sensor 有权

    公开(公告)号：US10215593B2

    公开(公告)日：2019-02-26

    申请号：US15079297

    申请日：2016-03-24

    Applicant: Infineon Technologies AG

    Inventor： Tobias Werth ,  Mario Motz ,  Gregor Wautischer

    IPC: G01D5/20

    Abstract: A sensor system for detecting a characteristic of a target object is described. The sensor system can include a sensor, such as a magnetic sensor, configured to sense magnet field components and to generate corresponding magnet field component signals based on the sensed magnet field components. The sensor system can include a processor that is configured to calculate a magnetic field angle based third magnetic field components. For example, the magnetic field angle can be calculated by determining a quadratic sum of a plurality of the magnetic field components. The characteristic of the target object can be determined based on the calculated magnetic field angle.

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