Patents by Inventor Udo Ausserlechner

Udo Ausserlechner has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200225297
    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.
    Type: Application
    Filed: January 13, 2020
    Publication date: July 16, 2020
    Applicant: Infineon Technologies AG
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10712400
    Abstract: A vertical Hall sensor circuit comprises an arrangement comprising a vertical Hall effect region of a first doping type, formed within a semiconductor substrate and having a stress dependency with respect to a Hall effect-related electrical characteristic. The vertical Hall sensor circuit further comprises a stress compensation circuit which comprises at least one of a lateral resistor arrangement and a vertical resistor arrangement. The lateral resistor arrangement has a first resistive element and a second resistive element, which are parallel to a surface of the semiconductor substrate and orthogonal to each other, for generating a stress-dependent lateral resistor arrangement signal on the basis of a reference signal inputted to the stress compensation circuit.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: July 14, 2020
    Assignee: Infineon Technologies AG
    Inventors: Mario Motz, Udo Ausserlechner
  • Publication number: 20200217906
    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.
    Type: Application
    Filed: March 19, 2020
    Publication date: July 9, 2020
    Applicant: Infineon Technologies AG
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10704925
    Abstract: An angle sensor includes a ring magnet adapted to be attached to a rotatable shaft. The ring magnet has an axis of rotation and an inner radius and an outer radius extending from the axis of rotation to define an annulus. A first magnetic sensor is situated proximate the ring magnet to measure magnetic field lines within the annulus, and a second magnetic sensor is situated proximate the ring magnet to measure magnetic field lines outside the annulus.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: July 7, 2020
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10704926
    Abstract: A sensor arrangement having a rotatable driving shaft extending along a rotation axis and comprising a bore extending from a first end face of the shaft along the rotation axis; a magnet arranged at least partially within the bore and coupled to the driving shaft, the magnet configured to generate a magnetic field within the bore; a sensor element arranged at least partially within the bore, and configured to sense a rotation of the magnetic field in response to rotation of the driving shaft; and a magneto-static shield arranged to surround the magnet and the sensor element, wherein the magneto-static shield is stationary with respect to the driving shaft.
    Type: Grant
    Filed: November 7, 2016
    Date of Patent: July 7, 2020
    Assignee: Infineon Technologies AG
    Inventors: Leo Aichriedler, Peter Slama, Udo Ausserlechner
  • Patent number: 10690523
    Abstract: A sensor arrangement is provided. The sensor arrangement includes a rotatable shaft extending along a rotation axis; a magnet module coupled to the rotatable shaft configured to generate a magnetic field; and a sensing element configured to sense a rotating magnetic field caused by the magnet module upon rotation of the rotatable shaft around the rotation axis. The rotatable shaft includes a bore extending within a shaft end portion along the rotation axis. The magnet module is coupled to at least one face of the bore and configured to generate the magnetic field within the bore. The sensing element has a sensitive spot, the sensitive spot being arranged within the bore and exposed to the rotating magnetic field.
    Type: Grant
    Filed: March 15, 2019
    Date of Patent: June 23, 2020
    Assignee: Infineon Technologies AG
    Inventors: Leo Aichriedler, Udo Ausserlechner, Peter Slama
  • Patent number: 10684141
    Abstract: A magnetic angle sensor device is suggested comprising a shaft that is arranged rotatably around a rotation axis, at least one permanent magnet, a stator and two magnetic angle sensors, which are fixed to the stator, wherein the shaft is arranged rotatably against the stator, wherein the at least one permanent magnet is connected to the shaft, and wherein the at least one permanent magnet is arranged to apply magnetic fields at the two magnetic angle sensors with different directions of diametrical magnetic field components.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: June 16, 2020
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20200182948
    Abstract: A method for providing a Hall effect signal corrected for thermal electromotive force (thermo-EMF), the method including: during a first operating phase: supplying a Hall-effect device with electrical energy; and determining a first output signal of the Hall effect device at at least one first output contact; and during a second operating phase: ceasing the supplying the Hall effect device with electrical energy; and determining a second output signal of the Hall-effect device at the at least one first output contact responsive to a temperature difference between the at least one first output contact of the Hall-effect device and a reference point; and combining the first and second output signals to determine the magnetic field effect signal corrected for thermal EMF.
    Type: Application
    Filed: February 4, 2020
    Publication date: June 11, 2020
    Inventor: Udo Ausserlechner
  • Publication number: 20200185599
    Abstract: The present disclosure relates to 3-dimensional Hall sensor devices comprising a Hall sensor element having a Hall effect region implemented in a 3-dimensional shell and comprising at least three terminals. Each terminal is connected to at least one electrical contact of the Hall effect region and each electrical contact is disposed at a different region of the 3-dimensional shell. The present disclosure further discloses spinning current/voltage schemes for offset cancellation in such 3-dimensional Hall sensor devices.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10677617
    Abstract: A sensor arrangement includes a sensor element and a magnet module. The sensor element is configured to measure a magnetic field and is positioned within a shaft. The shaft is configured to shield the magnet module and the sensor element. The magnet module is configured to generate the magnetic field. The sensor element is at least partially positioned within the shaft.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: June 9, 2020
    Assignee: Infineon Technologies AG
    Inventors: Udo Ausserlechner, Leo Aichriedler, Peter Slama
  • Publication number: 20200173811
    Abstract: A rotation angle sensing device is suggested, which comprises: a shaft that is rotatable around a rotation axis; a magnetic field source that is attached to the shaft; and at least one angle sensor that is arranged at an out-of-shaft location adjacent to the magnetic field source, wherein the angle sensor comprises a plane for measuring two components of a magnetic field emitted by the magnetic field source, and wherein the plane is tilted against an axis, which axis is the rotation axis of the shaft. Also, a corresponding method for sensing a rotational angle of a shaft is provided.
    Type: Application
    Filed: November 19, 2019
    Publication date: June 4, 2020
    Inventors: Wolfgang GRANIG, Udo AUSSERLECHNER
  • Publication number: 20200176162
    Abstract: A magnet arrangement including at least one magnetic element providing a modulated magnetization in a first direction and an essentially constant magnetization in a second direction different from the first direction.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Inventor: Udo Ausserlechner
  • Patent number: 10670671
    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.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: June 2, 2020
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20200166583
    Abstract: A method for operating a Hall sensor device that includes a Hall effect region and a plurality of electrical contact regions configured to provide electrical signals to and from the Hall effect region using a plurality of control terminals is provided. Each electrical contact region is formed in a respective well that adjoins the Hall effect region, and each control terminal is configured to control a conductance in an associated well. The method includes selectively applying control signals to a first subset of the plurality of control terminals to form channels conducting majority carriers of a first conductivity type in the associated wells during a first operating phase; and selectively applying control signals to a different second subset of the plurality of control terminals to form channels conducting majority carriers of the first conductivity type in the associated wells during a second operating phase.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: Infineon Technologies AG
    Inventor: Udo AUSSERLECHNER
  • Publication number: 20200166325
    Abstract: A magnetic angle sensor device and a method for operating such device is provided. The magnetic angle sensor device includes a shaft rotatable around a rotation axis; a magnetic field source coupled to the shaft; a first magnetic angle sensor configured to generate a first signal that represents a first angle based on a first diametric magnetic field from the magnetic field source applied to the first magnetic angle sensor; a second magnetic angle sensor configured to generate a second signal that represents a second angle based on a second diametric magnetic field from the magnetic field source applied to the second magnetic angle sensor; and a combining circuit configured to determine a combined rotation angle based on the first signal and on the second signal.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Applicant: Infineon Technologies AG
    Inventors: Udo AUSSERLECHNER, Wolfgang GRANIG
  • Publication number: 20200166326
    Abstract: A magnetic angle sensor device and a method for operating such device is provided. The magnetic angle sensor device includes a shaft rotatable around a rotation axis; a magnetic arrangement coupled to the shaft, where the magnetic arrangement produces a differential magnetic field comprising a plurality of diametric magnetic fields; a first magnetic angle sensor provided in the differential magnetic field and configured to generate a first signal that represents a first angle based on a first diametric magnetic field of the differential magnetic field; a second magnetic angle sensor provided in the differential magnetic field and configured to generate a second signal that represents a second angle based on a second diametric magnetic field of the differential magnetic field; and a combining circuit configured to determine a combined rotation angle based on the first signal and on the second signal.
    Type: Application
    Filed: January 31, 2020
    Publication date: May 28, 2020
    Applicant: Infineon Technologies AG
    Inventors: Udo AUSSERLECHNER, Wolfgang GRANIG
  • Patent number: 10663533
    Abstract: An apparatus for calibrating a sensor unit is provided, wherein the sensor unit includes a sensor housing, a first magnetic sensor and a second magnetic sensor, wherein the first magnetic sensor is adapted to detect magnetic field components in a first direction, wherein the second magnetic sensor is adapted to detect magnetic field components in a second direction, wherein the first direction is not parallel to the second direction. The apparatus further includes a magnetic field generating device, which is adapted so that at least one magnetic field acts on the sensor unit, wherein the calibration of the sensor unit can be carried out with the aid of responses of the first magnetic sensor and of the second magnetic sensor to the magnetic field. A corresponding calibration method is furthermore provided.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: May 26, 2020
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20200150152
    Abstract: A current sensor chip includes a first magnetic field sensor element and a second magnetic field sensor element respectfully configured to generate a first analog sensor signal and a second analog sensor signal responsive to a magnetic field caused by a primary current passing through an external primary conductor; an analog-to-digital converter coupled to the second magnetic field sensor element and configured to generate a digital sensor signal based on the second 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 calibration parameters stored in a memory, a corresponding current measurement signal, which 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.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Applicant: Infineon Technologies AG
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10648834
    Abstract: A ring-shaped magnet arrangement for use in determining a rotational angle of a rotatable shaft. The ring-shaped magnet arrangement being connected to or formed as part of the rotatable shaft for co-rotation with the rotatable shaft around a rotational axis. The ring-shaped magnet arrangement includes a first ring portion including a first wedge surface and a second ring portion including a second wedge surface. The first wedge surface and the second wedge surface form a wedge in a sensor facing end of the ring-shaped magnet arrangement. The sensor facing end is axially opposite a radial end of the ring-shaped magnet arrangement.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: May 12, 2020
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20200124398
    Abstract: A discrete magnetic angle sensor device can include a first magnetic field gradiometer and a second magnetic field gradiometer. The first magnetic field gradiometer and the second magnetic field gradiometer can be of different types of a group of gradiometer types. The sensor advantageously improves an accuracy of a determination of a rotation angle.
    Type: Application
    Filed: November 27, 2019
    Publication date: April 23, 2020
    Inventor: Udo Ausserlechner