APPARATUS AND METHOD FOR COMPENSATING FOR SENSITIVITY FLUCTUATIONS OF A MAGNETIC FIELD SENSOR CIRCUIT

    公开(公告)号:US20240069122A1

    公开(公告)日:2024-02-29

    申请号:US18456750

    申请日:2023-08-28

    Inventor: Edwin Mario MOTZ

    CPC classification number: G01R33/0029 G01R33/07 G01R33/098

    Abstract: A magnetic sensor apparatus includes a magnetic field generating circuit which is configured to generate a magnetic field, a magnetic field sensor circuit which is configured to output a sensor signal in response to the magnetic field, which sensor signal has a signal amplitude dependent on a sensitivity of the magnetic field sensor circuit, an amplifier circuit which is configured to amplify the sensor signal and to output an amplified sensor signal with an amplified signal amplitude, and a control circuit which is configured to use a setting signal to set a supply signal of the magnetic field sensor circuit and/or a gain of the amplifier circuit such that the amplified signal amplitude corresponds to a target amplitude.

    ANGLE SENSOR APPARATUS AND METHOD
    3.
    发明公开

    公开(公告)号:US20230243673A1

    公开(公告)日:2023-08-03

    申请号:US18156646

    申请日:2023-01-19

    Inventor: Edwin Mario MOTZ

    CPC classification number: G01D5/247 G01P3/4805

    Abstract: According to one example implementation, an angle sensor apparatus is provided, including: a sensor arrangement that is configured to respond to a rotational movement of a rotatable object by providing at least two phase-shifted measurement signals, an angle determination device that is configured to take the at least two phase-shifted measurement signals as a basis for determining an angular position, and a difference calculation device that is configured to determine a difference between the angular position determined by the angle determination device and an output from a counter, the counter being configured to be controlled based on the difference.

    DEVICE AND METHOD FOR CURRENT MEASUREMENT
    4.
    发明公开

    公开(公告)号:US20240151784A1

    公开(公告)日:2024-05-09

    申请号:US18493535

    申请日:2023-10-24

    CPC classification number: G01R33/07 G01R33/0029 G01R33/0082 H03F1/30

    Abstract: The present disclosure relates to a current sensor, including a magnetic-field sensor for measuring a magnetic field induced by an electrical current; an output connection for providing an amplified measurement signal from the magnetic-field sensor, the magnetic-field sensor and the output connection being connected by an analog signal path having at least one amplifier, the analog signal path having a frequency response; a temperature sensor for measuring a temperature; and a compensation circuit which is coupled to the analog signal path and is configured to correct the frequency response of the analog signal path based on the temperature.

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