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).

  • Patent number: 10355197
    Abstract: An integrated circuit includes a magnetic field sensor and an injection molded magnetic material enclosing at least a portion of the magnetic field sensor.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: July 16, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20190212173
    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 incudes 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: Application
    Filed: March 15, 2019
    Publication date: July 11, 2019
    Applicant: Infineon Technologies AG
    Inventors: Leo Aichriedler, Udo AUSSERLECHNER, Peter Slama
  • Publication number: 20190204063
    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: March 6, 2019
    Publication date: July 4, 2019
    Applicant: Infineon Technologies AG
    Inventors: Udo AUSSERLECHNER, Wolfgang GRANIG
  • Patent number: 10338159
    Abstract: An embodiment of a magnetic-field sensor includes a magnetic-field sensor arrangement and a magnetic body which has, for example, a non-convex cross-sectional area with regard to a cross-sectional plane running through the magnetic body, the magnetic body having an inhomogeneous magnetization.
    Type: Grant
    Filed: July 29, 2015
    Date of Patent: July 2, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventor: Udo Ausserlechner
  • Patent number: 10338158
    Abstract: A bias magnetic field sensor is disclosed. In an embodiment, a bias magnetic field sensor includes a magnetic field sensor package having a magnetic body attached to only a single side of the sensor package, wherein the magnetic body is configured to provide a magnetic field, and wherein the sensor package is configured to measure a modulation of the magnetic field by a generator object.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: July 2, 2019
    Assignee: INFINEON TECHNOLOGIES AG
    Inventors: Tobias Werth, Robert Hermann, Udo Ausserlechner, Helmut Koeck, Frank Heinrichs
  • Publication number: 20190186953
    Abstract: An example includes a sickle-shaped magnet arrangement, for use in determining a rotational angle of a rotatable object and is configured to co-rotate with the rotatable object around a rotational axis, includes an inner circumferential surface having an inner radius that is based on an azimuthal coordinate of the sickle-shaped magnet arrangement, an outer circumferential surface having an outer radius that is based on the azimuthal coordinate of the sickle-shaped magnet arrangement, wherein at least the inner radius or the outer radius varies based on the azimuthal coordinate; and an axial thickness between a first end of the sickle-shaped magnet arrangement and a second end of the sickle-shaped magnet arrangement, wherein the inner circumferential surface and the outer circumferential surface form a first sickle-shaped portion and a second sickle-shaped portion, wherein the first sickle-shaped portion is diametrically opposite the second sickle-shaped portion, and wherein the first sickle-shaped portion is
    Type: Application
    Filed: December 15, 2017
    Publication date: June 20, 2019
    Inventor: Udo Ausserlechner
  • Patent number: 10317439
    Abstract: Current sensors, systems and methods are provided. A test current is injected via a pair of force terminals into a conductor and a pair of sense terminals are configured to provide an input signal that corresponds to a voltage drop across the conductor. Based on the test current in the conductor and based on the input signal, a contribution to the voltage drop due to the test current and a contribution to the voltage drop due to a primary current through the conductor may be determined. In addition, at least one of a reference resistance of the conductor and the primary current in the conductor may be further determined.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: June 11, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20190170497
    Abstract: The present disclosure relates to a magnetic angle sensor arrangement. The magnetic angle sensor arrangement comprises a multipole magnet rotatable around a rotation axis. A geometric arrangement of the multipole magnet is rotationally asymmetric with respect to the rotation axis. A plurality of magnetic field sensor circuits are placed around the rotation axis at predefined equidistant angular positions in a predefined axial distance from the multipole magnet, wherein each magnetic field sensor circuit comprises a first magnetic field sensor element sensitive to first magnetic field component and a second magnetic field sensor element sensitive to a second magnetic field component perpendicular to the first magnetic field component.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 6, 2019
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10309802
    Abstract: Embodiments relate to magnetic field angle sensors, including off-axis and on-axis sensors. In an embodiment, a magnetic field angle sensor comprises two sensor units, and each sensor unit comprises two sensor elements. The sensor units are spaced apart from one another and arranged proximate a magnet, wherein the two sensor elements of each sensor unit are responsive to the same magnetic field component induced by a magnet coupled to a shaft as the shaft rotates. In each sensor unit, a sum and a difference of the output signals of the two sensor elements can be calculated to determine a coarse estimation of a rotation angle, and a more refined estimation can be obtained by combining the coarse estimations of each sensor unit. In embodiment, the magnetic field angle sensor comprises a control unit or other circuitry to carry out this combining.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: June 4, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20190154464
    Abstract: An example includes a ring-shaped magnet arrangement for use in determining a rotational angle of a rotatable shaft, the ring-shaped magnet arrangement configured to be connected to or formed as part of the rotatable shaft for co-rotation with the rotatable shaft around a rotational axis, wherein the ring-shaped magnet arrangement includes a first ring portion including a first wedge surface, wherein the first ring portion is magnetized in a first direction; and a second ring portion, that is diametrically opposite the first ring portion, the second ring portion including a second wedge surface, wherein the first wedge surface and the second wedge surface form a wedge in a sensor facing end of the ring-shaped magnet arrangement, and wherein the second ring portion is magnetized in a second direction that is within a threshold angle of the first direction and different from the first direction, wherein the sensor facing end is axially opposite a radial end of the ring-shaped magnet arrangement, wherein the rin
    Type: Application
    Filed: November 20, 2017
    Publication date: May 23, 2019
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10295644
    Abstract: Embodiments relate to sensor systems and methods that can compensate for thermal EMF effects that can cause residual offset and other errors in sensor systems. In one embodiment, a sensor system comprises at least one temperature sensor arranged proximate a primary sensor element, e.g., a Hall plate in an embodiment in which the sensor system comprises a Hall-effect magnetic field sensing system, though other types of magnetic field and sensors more generally can be used in other embodiments. In another embodiment, a plurality of temperature sensors can be used, with each one arranged proximate a different sensor contact or element. In an example in which the Hall plate is operated according to a spinning operation scheme, the at least one temperature sensor can be configured to sense a temperature in each operating phase, and the individual sensed temperatures can be combined and used to provide a temperature-dependent compensation signal.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: May 21, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10288449
    Abstract: An embodiment relates to an angle sensor for detecting a rotational position of a shaft to which a magnetic field arrangement is attached, comprising: a first sensor element, a second sensor element, a support structure, wherein the first sensor element and the second sensor element are mechanically coupled to the support structure, wherein the support structure is arranged to be mechanically connected to a hull, wherein the hull at least partially encloses the shaft.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: May 14, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20190123745
    Abstract: Embodiments relate to integrated magnetic field sensor-controlled switch devices, such as transistors, current sources, and power switches, among others. In an embodiment, a magnetic switch and a load switch are integrated in a single integrated circuit device. In embodiments, the magnetic switch is configured to sense a dynamic change in magnetic field caused by movement of a magnet in at least one of a linear, three-dimensional, and rotational direction.
    Type: Application
    Filed: December 17, 2018
    Publication date: April 25, 2019
    Inventors: Sebastian Maerz, Franz Jost, Udo Ausserlechner, Jean-Marie Le Gall
  • Patent number: 10247788
    Abstract: A resistive element includes a resistive region in a semiconductor substrate, a first contact structure and a second contact structure. The semiconductor substrate includes a first main surface area. The resistive region extends in a lateral direction parallel to the main surface area and in a vertical direction perpendicular to the main surface area, and includes a first piezo-resistive coefficient for a current flow in the lateral direction and a second piezo-resistive coefficient for a current flow in the vertical direction. The first contact structure contacts a portion of a first face of the resistive region and the second contact structure contacts a portion of a second face of the resistive region. The resistive element generates a current flow distribution within the resistive region having a lateral component and a vertical component that results in a piezo-resistive coefficient of the resistive element.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: April 2, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Publication number: 20190063955
    Abstract: A ring magnet for use in determining a rotational angle of a rotatable shaft and configured to be connected to the rotatable shaft for co-rotation with the rotatable shaft around a rotational axis may include a recess in a circumferential surface of the ring magnet, where the recess may be recessed away from the circumferential surface to cause a magnetic sensor to measure a substantially constant ellipticity of a radial component of a magnetic field of the ring magnet and a tangential component of the magnetic field of the ring magnet, when measuring the rotational angle of the rotatable shaft, as the ring magnet moves along the rotational axis of the rotatable shaft.
    Type: Application
    Filed: August 25, 2017
    Publication date: February 28, 2019
    Inventor: Udo AUSSERLECHNER
  • Patent number: 10203224
    Abstract: A device for detecting an object is suggested comprising a magnetic field sensor, a magnet that is arranged to rotate in a vicinity of the magnetic field sensor, wherein the object is movable in the vicinity of the magnet to affect the rotation of the magnet, wherein the magnetic field sensor is arranged to detect a magnetic field of the magnet. Also, a system comprising such device is provided.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: February 12, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10184958
    Abstract: Devices and methods associated with current measurements are provided. A current in a conductor portion may be measured by a current sensing element. An output signal indicative of the current may be generated based on the measured current and information regarding a current path.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: January 22, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10175062
    Abstract: In a magnet assembly, and an angle detection system embodying such a magnet assembly, for detecting a rotational angle of a rotating shaft, first and second magnet portions are mounted on the shaft, and have geometrical shapes and respective magnetizations with various symmetry features.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 8, 2019
    Assignee: Infineon Technologies AG
    Inventor: Udo Ausserlechner
  • Patent number: 10156457
    Abstract: A method for measuring an angular position of a rotating shaft, the method including providing a magnetic field which rotates with the shaft about an axis of rotation, positioning an integrated circuit having first and second magnetic sensing bridges within the magnetic field at a radially off-center position from the axis of rotation, the first and second magnetic sensing bridges respectively providing first and second signals representative of first and second magnetic field directions, the integrated circuit having a set of adjustment parameters for modifying attributes of the first and second signals, modifying values of the set of adjustment parameters until errors in the first and second signals are substantially minimized, and determining an angular position of the shaft based on the first and second signals.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: December 18, 2018
    Assignee: Infineon Technologies AG
    Inventors: Wolfgang Granig, Dirk Hammerschmidt, Udo Ausserlechner
  • Patent number: 10158359
    Abstract: Embodiments relate to integrated magnetic field sensor-controlled switch devices, such as transistors, current sources, and power switches, among others. In an embodiment, a magnetic switch and a load switch are integrated in a single integrated circuit device. In embodiments, the magnetic switch is configured to sense a dynamic change in magnetic field caused by movement of a magnet in at least one of a linear, three-dimensional, and rotational direction.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: December 18, 2018
    Assignee: Infineon Technologies AG
    Inventors: Sebastian Maerz, Franz Jost, Udo Ausserlechner, Jean-Marie Le Gall