Infineon Technologies Ag

Tobias Werth

Dirk Hammerschmidt

Mario Motz

Simon Hainz

Helmut Koeck

Simone Fontanesi

Andrea Monterastelli

Friedrich Rasbornig

Klaus Elian

James Sterling

Catalina-Petruta Juglan

Udo Ausserlechner

Peter Slama

Robert Hermann

Klaus Grambichler

Patricia Lorber

Leo Aichriedler

Harald Witschnig

Armin Satz

Dietmar Spitzer

Georg Brasseur

Florian Brugger

Hubert Zangl

Lorenzo Coceani

Frank Heinrichs

Thomas Bretterklieber

Carlos Humberto Garcia Rojas

Gert Holler

Dieter Draxelmayr

Juergen Zimmer

Christof Bodner

Bernhard Forster

Hans-Joerg Wagner

Francesco Alex Maone

Francesco Polo

Theodor Kranz

Mihai Alexandru Ionescu

Razvan-Catalin Mialtu

Hubert Fischer

Peter Alfred Friessnegger

Michael Burk Westpfahl

David Tatschl

Gregor Wautischer

Valentin Aldea

Cosmin Filip

Stefan Dineci

Silviu-Antonio Pieleanu

An inductive sensor may include a first angle measurement path associated with determining an angular position based on a first set of input signals. The inductive sensor may include a second angle measurement path associated with determining an angular position based on a second set of input signals. The inductive sensor may include an amplitude regulation path associated with regulating amplitudes of a set of output signals. The inductive sensor may include a safety path associated with performing one or more safety checks. Each safety check of the one or more safety checks may be associated with at least one of the first angle measurement path, the second angle measurement path, or the amplitude regulation path.

Inductive sensor with improved safety

The present disclosure relates to circuits for detecting a line short circuit and/or a line interruption in a differentially operated line network, comprising at least one control circuit configured to control at least one common-mode signal of the differentially operated line network vis-à-vis a predefined common-mode signal variable and to indicate a line short circuit and/or a line interruption in the differentially operated line network if at least one control or controlled variable of the control circuit exceeds a predefined threshold value.

Circuits and methods for detecting line short circuits and/or line interruptions in differentially operated line networks

A magnetic field sensor includes a sensor and a processing circuit. The sensor is designed to generate on the basis of a varying magnetic field an oscillation signal that fluctuates around a mean value. The processing circuit is designed to generate an output signal on the basis of the oscillation signal. The processing circuit is designed, in a high-resolution mode different than a low-resolution mode, in each case to generate a mean value crossing pulse in the output signal when the oscillation signal attains the mean value, and to generate in each case a limit value crossing pulse in the output signal when the oscillation signal attains at least one limit value different than the mean value. A pulse width of at least either the mean value crossing pulse or the limit value crossing pulse is set to indicate that the magnetic field sensor is operating in the high-resolution mode.

High-resolution mode for a magnetic field sensor

A magnetic field sensor package includes a sensor housing; a first sensor chip having an integrated first differential magnetic field sensor circuit, the first sensor chip being arranged in the sensor housing; a second sensor chip having an integrated second differential magnetic field sensor circuit, the second sensor chip being arranged in the sensor housing; a common leadframe arranged in the sensor housing and interposed between the first sensor chip and the second sensor chip; and an insulating layer arranged in the sensor housing interposed between the first sensor chip and the common leadframe. The first sensor chip is coupled to the common leadframe via the insulating layer. Additionally, the insulating layer electrically insulates the first sensor chip from the common leadframe such that the first sensor chip and the second sensor chip are galvanically decoupled from each other.

Redundant magnetic field sensor arrangement with galvanically decoupled chips for error detection and method for detecting errors while measuring an external magnetic field using redundant sensing

The described techniques facilitate the secure transmission of sensor measurement data to an ECU by implementing an authentication procedure. The authentication procedure includes an integrated circuit (IC) generating authentication tags by encrypting portions of sensor measurement data. These authentication tags are then transmitted together with the sensor measurement data as authenticated sensor measurement data. The ECU may then use the authentication tags to authenticate the sensor measurement data based upon a comparison of the portions of the sensor measurement data sensor measurement data to the authentication tag that is expected to be generated for those portions of sensor measurement data.

Advanced sensor security protocol

A sensor device is provided with a magnetic field sensitive element being positioned in a magnetic field of a magnet. The magnetic field sensitive element is configured to sense an orientation angle of the magnetic field in the range between 0&#xb0; and 360&#xb0; and generate a sensing signal. The electronic circuitry is configured to receive and process the sensing signal from the magnetic field sensitive element to generate an angle signal indicating the orientation angle of the magnetic field and an angular speed of the shaft.

Angle based speed sensor device

Apparatuses and methods for analog-digital conversion and corresponding systems having a sensor and an apparatus of this type are provided. Demodulation is executed with no variable preamplification, followed by continuous-time analog-digital conversion, at least in time segments, which further employs chopper techniques.

Analog-digital converter apparatus, sensor system and method for analog-digital conversion

A magnetic field sensor arrangement includes a magnetic field sensor element configured to provide a sensor output signal responsive to a magnetic field, wherein the sensor output signal is representative of a magnetic field amplitude; a processing module configured to provide a processed sensor output signal representative of the sensor output signal; a switching level calculation module configured to calculate a switching level, (1) during a power up mode, based on a default switching level, and (2) during a running mode, based on the processed sensor output signal; a comparator module configured to compare the processed sensor output signal with the switching level, and to provide a comparator output signal based on the comparison; and a storage module configured to store the default switching level, provide the default switching level during the power up mode, and update the default switching level during the running mode.

Magnetic field sensor arrangement and method for processing a magnetic field sensor output signal

An apparatus, for determining a relative direction of a movement of an encoder object depending on a magnetic field which is generated or influenced by the encoder object. A magnetic field sensor generates two sensor signals based on the magnetic field, that indicate a profile of the magnetic field in the event of a relative movement between the encoder object and the magnetic field sensor, that fluctuate around a mean value and are phase-shifted 90&#xb0; to one another. The processing circuit calculates an angle based on the two sensor signals, and determines the relative direction of the movement of the encoder object based on a gradient of the angle between a switch-on time of the apparatus and a threshold value angle which is reached thereafter or based on a gradient of the angle between the situation of two successive threshold value angles being reached.

Determining a relative movement direction

Magnetic field sensors and sensing methods are provided. A magnetic sensor module is configured to measure a magnetic field whose magnitude oscillates between a first extrema and a second extrema. The magnetic sensor module includes a magnetic sensor configured to generate measurement values in response to sensing the magnetic field, and a sensor circuit. The sensor circuit is configured to generate a measurement signal based on the measurement values, adjust an offset of the measurement signal according to an offset update algorithm and a first characteristic of the measurement signal, generate a pulsed output signal having pulses that are generated based on the adjusted measurement signal crossing the switching threshold, and selectively enable and disable the offset update algorithm based on a second characteristic of the measurement signal.

HEV robust algorithms for magnetic speed sensor for engine applications

A magnetic field sensor apparatus includes a sensor signal generator generating a sensor signal responsive to a magnetic field. A switching level provider provides during a power up mode a switching level based on a most recently updated valid one of a first and a second value of a default switching level. If an update triggering condition occurs, the not most recently updated one of the first and second values of the default switching level is updated and the most recently updated one of the first and second values of the default switching level is maintained unchanged until a next update triggering condition occurs, so that the first and second values of the default switching level are updated alternately on consecutive triggering conditions.

Updating a default switching level

A system includes a magnetic field sensor arrangement and a controller. The magnetic field sensor arrangement includes a first sensor chip having an integrated circuit differential magnetic field sensor circuit configured to generate a first output signal comprising first signal pulses, a second sensor chip having an integrated second differential magnetic field sensor circuit configured to generate a second output signal comprising second signal pulses, and at least one output signal terminal configured to output the first and the second output signals. The controller receives the first and the second signal pulses from the at least one output signal terminal, evaluates the first and the second signal pulses, and detects an error of an operation of the magnetic field sensor arrangement in response to the first and the second signal pulses not satisfying an expected output pattern of the first and the second signal pulses.

Redudant magnetic field sensor arrangement for error detection and method for detecting errors while measuring an external magnetic field using redundant sensing

Apparatuses and methods for sending and receiving rotation speed information and corresponding computer programs and electronically readable data carriers are provided. A current interface is configured to transmit pulse sequences coding a number of bits. In a first bit group of the number of bits, it is flagged whether the pulse sequence has been sent for a zero crossing in a magnetic field. Information modulated onto a second bit group of the number of bits is selected on the basis of the first bit group.

Apparatuses and methods for sending and receiving rotation speed information

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Villach, Austria

Tobias Werth