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.

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.

Abstract: A Hall sensor device includes a Hall effect region of a first conductivity type, electrical contact regions configured to provide electrical signals to/from the Hall effect region, and circuitry. Each electrical contact region is formed in a respective well of a second conductivity type that adjoins the Hall effect region. Circuitry includes control terminals, wherein each control terminal is configured to control a conductance in an associated well of the second conductivity type. The circuitry is configured to selectively apply control signals to a first subset of the control terminals to form channels conducting majority carriers of the first conductivity type in the associated wells during a first operating phase, and to selectively apply control signals to a second subset of the control terminals to form channels conducting majority carriers of the first conductivity type in the associated wells during a second operating phase.

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.

Abstract: A stress sensor includes a semiconductor die to which a mechanical stress is applied. The semiconductor die includes at least one bipolar junction transistor; at least one current source configured to inject at least one current through the at least one bipolar junction transistor; and a processing circuit configured to measure a first current gain and a second current gain of the at least one bipolar junction transistor based on the at least one injected current, to determine a first mechanical stress level based on the first current gain, to determine a second mechanical stress level based on the second current gain, and to generate a mechanical stress level signal based on the first mechanical stress level and the second mechanical stress level, wherein the mechanical stress level signal represents the applied mechanical stress, at least a portion of which is applied to the at least one bipolar junction transistor.

Abstract: A magnetic angular position sensor system is described herein, which includes a shaft rotatable around a rotation axis, the shaft having a soft magnetic shaft end portion. The system further includes a sensor chip spaced apart from the shaft end portion in an axial direction and defining a sensor plane, which is substantially perpendicular to the rotation axis. At least four magnetic field sensor elements are integrated in the sensor chip, with two of the magnetic field sensor elements being spaced apart from each other and are sensitive to magnetic field components in a first direction and wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a second direction, whereby the first and the second direction are mutually non-parallel and the first and the second direction being perpendicular to the rotation axis.

Abstract: Sensor arrangement providing a signal responsive to a temperature difference between a Hall-effect device output contact and a reference point, having first contact tub located near an external surface of a Hall effect region; second contact tub located near the reference point; first conductor element comprising first and second ends, the first end thermally coupled to the first contact tub and the second end thermally coupled to the second contact tub; second conductor element comprising third and fourth ends, the third end thermally coupled to the first contact tub; third conductor element comprising fifth and sixth ends, the fifth end thermally coupled to the second contact tub, wherein the first and third ends are electrically coupled, the second and fifth ends are electrically coupled, at least two of first, second, and third conductor elements have substantially different Seebeck coefficients, and the signal is tapped at the fourth and sixth ends.

Abstract: A sensor arrangement and an e-bike that includes the sensor arrangement are provided. The sensor arrangement includes a rotatable driving shaft for an e-bike extending along a rotation axis and includes a bore extending from a first end face of the rotatable driving shaft along the rotation axis, a magnet module arranged within the bore and coupled to the rotatable driving shaft, the magnet module configured to generate a magnetic field within the bore, and at least one sensing element configured to sense a rotation of the magnetic field in response to rotation of the rotatable driving shaft.

Abstract: A magnet arrangement having 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.

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

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: 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.

Abstract: An angle sensor arrangement is proposed, said angle sensor arrangement including at least two sensor substrates arranged in such a way that they assume different angular orientations in relation to an axis of rotation, wherein at least one sensor substrate comprises two magnetic field sensor elements arranged in such a way that they assume different angular orientations in relation to the axis of rotation, and comprising a combining device, on the basis of which a linear combination of the magnetic field quantities measured by the two magnetic field sensor elements is determinable. Furthermore, a method for calibrating or operating an angle sensor arrangement is specified.

Abstract: A discrete magnetic angle sensor device according to an embodiment includes a first magnetic field gradiometer and a second magnetic field gradiometer. The first magnetic field gradiometer and the second magnetic field gradiometer are of different types of a group of gradiometer types. An embodiment may improve an accuracy of a determination of a rotation angle.

Abstract: An embodiment relates to a magnetic angle sensor device comprising a first group of magnetic angle sensors and a second group of magnetic angle sensors, wherein the first group of magnetic angle sensors and the second group of magnetic angle sensors are located on different positions along a straight line, wherein the first group of magnetic angle sensors comprises at least one first type of angle sensor and at least one second type of angle sensor, wherein the second group of magnetic angle sensors comprises the at least one first type of angle sensor and the at least one second type of angle sensor, wherein the at least one first type of angle sensor is sensitive to detect a first magnetic field component in a first direction and the at least one second type of angle sensor is sensitive to detect a second magnetic field component in a second direction, and wherein a combined rotation angle is determined based on the detected first magnetic field components and the detected second magnetic field components.

Abstract: A device includes a permanent magnetic material extending along a path, a first magnetic angle sensor configured to output at least a first signal and being positioned remotely from the material, and a second magnetic angle sensor configured to output at least one second signal and being positioned remotely from the material and from the first magnetic angle sensor. Based on the at least one first signal and the at least one second signal, a relative positioning of the first magnetic angle sensor and the second magnetic angle sensor with respect to the material in parallel to the path is determined. The magnetization of the material has a periodicity that varies along the path.

Abstract: Magnet arrangements, sensor devices and corresponding methods are provided comprising a first magnet portion and a second magnet portion. The first magnet portion is spaced apart from the second magnet portion, and the second magnet portion comprises a bore. In a corresponding sensor device, a sensor element may be provided at a position between the first and second magnet portions.

Abstract: In an embodiment, a current difference sensor includes first and second conductors arranged relative to one another such that when a first current flows through the first conductor and a second current, equal to the first current, flows through the second conductor, a first magnetic field induced in the first conductor and a second magnetic field induced in the second conductor cancel each other at first and second positions; first and second magnetic field sensing elements are arranged at the first and second positions, respectively, and have a first sensitivity to the first and second currents; third and fourth magnetic field sensing elements are arranged at other positions, and have a second sensitivity to the first and second currents; and the first sensitivity is less than the second sensitivity such that the first and second magnetic field sensing elements and not the third and fourth magnetic sensing elements are selected.

Abstract: A magnetic angular position sensor system is described herein. According to one exemplary embodiment the angular position sensor system comprises a shaft rotatable around a rotation axis, wherein the shaft has a soft magnetic shaft end portion. The system further comprises a sensor chip spaced apart from the shaft end portion in an axial direction and defining a sensor plane, which is substantially perpendicular to the rotation axis. At least four magnetic field sensor elements are integrated in the sensor chip, wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a first direction and wherein two of the magnetic field sensor elements are spaced apart from each other and are only sensitive to magnetic field components in a second direction, whereby the first and the second direction are mutually non-parallel and the first and the second direction being perpendicular to the rotation axis.

Abstract: Embodiments relate to stress compensation in differential sensors. In an embodiment, instead of compensating for stress on each sensor element independently, stress compensation circuitry aims to remove stress-related mismatch between two sensor elements using the sensor elements themselves to detect the mismatch. A circuit can be implemented in embodiments to detect mechanical stress-related mismatch between sensor elements using the sensor elements, and tune the output signal by a compensation factor to eliminate the mismatch. Embodiments are therefore less complicated and less expensive than conventional approaches. While embodiments have applicability to virtually any differential sensor, including magnetic field, pressure, temperature, current and speed, an example embodiment discussed herein relates to magnetic field.