Patents by Inventor Gerald Wriessnegger
Gerald Wriessnegger 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).
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Publication number: 20240304528Abstract: A power transistor chip package includes a power transistor chip having a first load electrode on a first side, a second load electrode on a second (opposite) side, and a control electrode. The power transistor chip is disposed on a chip pad, with the first side facing the pad and the first load electrode electrically connected to the pad. An encapsulation body encapsulates the power transistor chip and includes a footprint side, a top (opposite) side, and side faces extending between the footprint and top sides. A first package load terminal is electrically connected to the first load electrode. Part I and part II second package load terminals are both electrically connected directly to the second load electrode. A package control terminal is electrically connected to the control electrode. The part I and part II second package load terminals are aligned with opposite sides faces of the encapsulation body.Type: ApplicationFiled: March 8, 2024Publication date: September 12, 2024Inventors: Ralf Otremba, Leo Aichriedler, Daniel Hölzl, Gerald Wriessnegger, Soumya Susovita Nayak
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Publication number: 20240118334Abstract: An apparatus comprises a switch and a capacitor connected to the switch and to a gate driver that drives a gate of a solid state device. The gate driver is operated to perform a test sequence for the solid state device. The test sequence includes turning on a switch and charging a capacitor to a supply voltage during an initial phase. During a first phase, the switch and the solid state device are turned off, the gate driver is disconnected from the supply voltage, and the gate driver drives the gate of the solid state device based at least upon a charge of the capacitor. During a second phase, the gate driver drives the gate of the solid state device to turn on the solid state device. A gate charge at the gate of the solid state device is measured as an operational state of the solid state device.Type: ApplicationFiled: October 6, 2022Publication date: April 11, 2024Inventors: Leo AICHRIEDLER, Gerald WRIESSNEGGER
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Patent number: 11860201Abstract: The present disclosure relates to a sensor system, comprising a microcontroller, at least one sensor chip designed to measure a physical quantity, wherein the microcontroller and the sensor chip are coupled to one another via at least one analog signal interface for conveying analog measurement data between the sensor chip and the microcontroller and via a bidirectional digital signal interface for conveying digital secondary information between the sensor chip and the microcontroller.Type: GrantFiled: October 13, 2020Date of Patent: January 2, 2024Assignee: Infineon Technologies AGInventors: Leo Aichriedler, Gerald Wriessnegger
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Publication number: 20230417841Abstract: An apparatus comprises a solid state device and a switch in series with the solid state device. The apparatus comprises a leak detection component connected to the solid state device. The apparatus comprises a gate driver configured to drive a gate of the solid state device. The gate driver comprises test circuitry configured to apply a test voltage to the gate of the solid state device. The test voltage is less than a threshold voltage of the solid state device. The leak detection component is configured to detect a leakage of the solid state device.Type: ApplicationFiled: June 27, 2022Publication date: December 28, 2023Inventors: Leo AICHRIEDLER, Gerald Wriessnegger
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Patent number: 11796571Abstract: A busbar for current transport comprises conductive material, which extends along a current direction. A recess for a magnetic field sensor extends into the conductive material, a middle of the recess being shifted by a predetermined distance from a middle of the conductive material in the direction of an edge of the conductive material, so that, within a frequency range, a frequency dependency of a magnetic field, which is induced by an alternating current flowing along the current direction, is reduced in comparison with a busbar having a central recess.Type: GrantFiled: May 20, 2020Date of Patent: October 24, 2023Assignee: Infineon Technologies AGInventors: Michael Ortner, Leo Aichriedler, Dietmar Spitzer, Gerald Wriessnegger
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Patent number: 11677341Abstract: A motor drive circuit provides a drive signal to an electronically commutated motor. A control circuit the motor drive circuit based on calibration data. The calibration data indicate a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.Type: GrantFiled: April 30, 2021Date of Patent: June 13, 2023Assignee: Infineon Technologies AGInventors: Thomas Hafner, Leo Aichriedler, Gerald Wriessnegger
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Patent number: 11496065Abstract: A power module is provided that is configured to supply power to a load. The power module includes a current generator configured to generate a current; a current rail configured to receive the current and output the current from the power module, wherein the current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, flows around the first opening; and a housing that houses the current generator, wherein the housing includes an outer frame from which the current rail outwardly extends, wherein the outer frame includes a recess aligned with the first opening of the current rail such that the recess and the first opening form a unitary opening.Type: GrantFiled: May 5, 2021Date of Patent: November 8, 2022Assignee: Infineon Technologies AGInventors: Leo Aichriedler, Gerald Wriessnegger
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Patent number: 11394312Abstract: A power module is provided that is configured to supply power to a load. The power module includes a current generator, a current rail, and a magnetic sensor. The current generator is configured to generate a current. The current rail is configured to receive the current and output the current from the power module. The current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, produces a magnetic field. The magnetic sensor is disposed in the first opening of the current rail, and is configured to generate a differential sensor signal based on the magnetic field impinging thereon. The current generator is further configured to regulate the current based on the differential sensor signal.Type: GrantFiled: July 15, 2020Date of Patent: July 19, 2022Inventors: Leo Aichriedler, Gerald Wriessnegger
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Patent number: 11340268Abstract: A method may include pressing a sensor module onto a control board such that the sensor module is at an initial position where an air gap is present between a module body of the sensor module and the control board such that compliant pins of the sensor module are partially inserted into the control board. The method may include mounting the control board on a power module to cause pins of the power module to be at least partially inserted into the control board and the sensor module to be at least partially inserted in the power module such that a protrusion is through an opening in a busbar. The method may include pressing the control board onto the power module to cause the pins of the power module to be further inserted into the control board, the sensor module to be further inserted in the power module, and the sensor module to be at a final position.Type: GrantFiled: September 21, 2020Date of Patent: May 24, 2022Assignee: Infineon Technologies AGInventors: Gerald Wriessnegger, Leo Aichriedler, Tomas Manuel Reiter, Christoph Koch, Andreas Schenk, Johannes Hackl, Volker Thorsten Schmidt
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Patent number: 11239761Abstract: A power module is provided that is configured to supply power to a load. The power module includes a current generator, a current rail, and a magnetic sensor. The current generator is configured to generate a current. The current rail is configured to receive the current and output the current from the power module. The current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, produces a magnetic field. The magnetic sensor is disposed in the first opening of the current rail, and is configured to generate a differential sensor signal based on the magnetic field impinging thereon. The current generator is further configured to regulate the current based on the differential sensor signal.Type: GrantFiled: January 24, 2018Date of Patent: February 1, 2022Inventors: Leo Aichriedler, Gerald Wriessnegger
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Publication number: 20210265927Abstract: A motor drive circuit provides a drive signal to an electronically commutated motor. A control circuit the motor drive circuit based on calibration data. The calibration data indicate a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.Type: ApplicationFiled: April 30, 2021Publication date: August 26, 2021Inventors: Thomas Hafner, Leo Aichriedler, Gerald Wriessnegger
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Publication number: 20210257925Abstract: A power module is provided that is configured to supply power to a load. The power module includes a current generator configured to generate a current; a current rail configured to receive the current and output the current from the power module, wherein the current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, flows around the first opening; and a housing that houses the current generator, wherein the housing includes an outer frame from which the current rail outwardly extends, wherein the outer frame includes a recess aligned with the first opening of the current rail such that the recess and the first opening form a unitary opening.Type: ApplicationFiled: May 5, 2021Publication date: August 19, 2021Applicant: Infineon Technologies AGInventors: Leo AICHRIEDLER, Gerald WRIESSNEGGER
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Patent number: 11038444Abstract: A motor drive circuit provides a drive signal to an electronically commutated motor. A control circuit the motor drive circuit based on calibration data. The calibration data indicate a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.Type: GrantFiled: August 18, 2017Date of Patent: June 15, 2021Assignee: INFINEON TECHNOLOGIES AGInventors: Thomas Hafner, Leo Aichriedler, Gerald Wriessnegger
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Publication number: 20210123956Abstract: The present disclosure relates to a sensor system, comprising a microcontroller, at least one sensor chip designed to measure a physical quantity, wherein the microcontroller and the sensor chip are coupled to one another via at least one analog signal interface for conveying analog measurement data between the sensor chip and the microcontroller and via a bidirectional digital signal interface for conveying digital secondary information between the sensor chip and the microcontroller.Type: ApplicationFiled: October 13, 2020Publication date: April 29, 2021Inventors: Leo AICHRIEDLER, Gerald WRIESSNEGGER
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Publication number: 20200381881Abstract: A busbar for current transport comprises conductive material, which extends along a current direction. A recess for a magnetic field sensor extends into the conductive material, a middle of the recess being shifted by a predetermined distance from a middle of the conductive material in the direction of an edge of the conductive material, so that, within a frequency range, a frequency dependency of a magnetic field, which is induced by an alternating current flowing along the current direction, is reduced in comparison with a busbar having a central recess.Type: ApplicationFiled: May 20, 2020Publication date: December 3, 2020Inventors: Michael ORTNER, Leo AICHRIEDLER, Dietmar SPITZER, Gerald WRIESSNEGGER
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Publication number: 20200350831Abstract: A power module is provided that is configured to supply power to a load. The power module includes a current generator, a current rail, and a magnetic sensor. The current generator is configured to generate a current. The current rail is configured to receive the current and output the current from the power module. The current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, produces a magnetic field. The magnetic sensor is disposed in the first opening of the current rail, and is configured to generate a differential sensor signal based on the magnetic field impinging thereon. The current generator is further configured to regulate the current based on the differential sensor signal.Type: ApplicationFiled: July 15, 2020Publication date: November 5, 2020Applicant: Infineon Technologies AGInventors: Leo AICHRIEDLER, Gerald WRIESSNEGGER
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Patent number: 10699976Abstract: A semiconductor module includes a semiconductor die, a mold compound encasing the semiconductor die, a plurality of terminals electrically connected to the semiconductor die and protruding out of the mold compound, wherein a first one of the terminals has a constricted region covered by the mold compound, wherein the mold compound has a recess or an opening near the constricted region of the first terminal, and a coreless magnetic field sensor disposed in the recess or the opening of the mold compound and isolated from the first terminal by the mold compound. The coreless magnetic sensor is configured to generate a signal in response to a magnetic field produced by current flowing in the constricted region of the first terminal. The magnitude of the signal is proportional to the amount of current flowing in the constricted region of the first terminal. A method of manufacturing the module also is described.Type: GrantFiled: January 29, 2019Date of Patent: June 30, 2020Assignee: Infineon Technologies AGInventors: Juergen Hoegerl, Leo Aichriedler, Christian Schweikert, Gerald Wriessnegger
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Publication number: 20190229640Abstract: A power module is provided that is configured to supply power to a load. The power module includes a current generator, a current rail, and a magnetic sensor. The current generator is configured to generate a current. The current rail is configured to receive the current and output the current from the power module. The current rail includes a first opening formed therethrough, and the current, while flowing along the current rail in an output direction, produces a magnetic field. The magnetic sensor is disposed in the first opening of the current rail, and is configured to generate a differential sensor signal based on the magnetic field impinging thereon. The current generator is further configured to regulate the current based on the differential sensor signal.Type: ApplicationFiled: January 24, 2018Publication date: July 25, 2019Applicant: Infineon Technologies AGInventors: LEO AICHRIEDLER, Gerald WRIESSNEGGER
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Publication number: 20190058427Abstract: A motor drive circuit provides a drive signal to an electronically commutated motor. A control circuit the motor drive circuit based on calibration data. The calibration data indicate a relationship between an actual angular position of a rotor of the motor in response to the drive signal and an expected angular position of a rotor of an ideal motor in response to the drive signal.Type: ApplicationFiled: August 18, 2017Publication date: February 21, 2019Applicant: Infineon Technologies AGInventors: Thomas Hafner, Leo Aichriedler, Gerald Wriessnegger