Patents by Inventor Stanley BUCHERT

Stanley BUCHERT 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: 11728743
    Abstract: A power electronics converter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes at least one power semiconductor switching element. Each power semiconductor switching element is comprised in a power semiconductor prepackage. One or more terminals of each power semiconductor switching element are connected to at least one conductive layer of the carrier substrate at an electrical connection side of the respective power semiconductor prepackage. The electrical connection side is spaced apart from the carrier substrate by a gap. At least a portion of the gap is filled with an electrically insulating material with voids. A peak rated power output of the power electronics converter is greater than 25 kW, and a converter parameter, which is defined as a product of a dielectric strength of the electrically insulating material and a maximum void size, is less than or equal to 10,000 V.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: August 15, 2023
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
  • Patent number: 11688723
    Abstract: An electrical vertical take-off and landing (eVTOL) aircraft includes a plurality of electrical propulsion units (EPUs), each EPU having a propeller or a fan configured to be driven to rotate by an electrical motor arranged to receive electrical power from a respective power electronics converter. Each power electronics converter includes a converter commutation cell having a power circuit and a gate driver circuit, the power circuit including at least one power semiconductor switching element and at least one capacitor. At least one terminal of each power conducting switching element is connected to at least one electrically conductive layer of a multi-layer planar carrier substrate at an electrical connection side of a power semiconductor prepackage, which includes at least one electrically conductive layer located on an opposite side of the power semiconductor switching element to the electrical connection side of the power semiconductor prepackage.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: June 27, 2023
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Uwe Waltrich, Stanley Buchert
  • Publication number: 20230132321
    Abstract: The invention relates to a device having: —a circuit carrier board (3) and—a conductor element (2), which is designed to transfer an electric current from and/or to the circuit carrier board (3), characterized by: —an electrically conductive, elastically deformable, contoured, plate-like connection element (1), which connects the circuit carrier plate (3) to the conductor element (2) and is designed to create a local, dynamic resilience, as a result of which a force transmission (F) from the conductor element (2) to the circuit carrier plate (3) can be reduced, and—a plate thickness of the connection element (1) of at least 2 cm. The invention also relates to a power converter (4) and an aircraft (6) having such a device.
    Type: Application
    Filed: May 23, 2019
    Publication date: April 27, 2023
    Inventors: Stanley Buchert, Uwe Waltrich, Antonio Zangaro
  • Patent number: 11637504
    Abstract: A power electronics converter includes a carrier substrate, and a converter commutation cell including a power circuit. The power circuit includes a power semiconductor switching element. The power semiconductor switching element is comprised in a power semiconductor prepackage. The power semiconductor prepackage includes a power semiconductor switching element embedded in a solid insulating material, and an electrical connection extending from a terminal of the power semiconductor switching element through the solid insulating material to an electrical connection side of the power semiconductor prepackage. The power electronics converter includes a heat sink arranged to remove heat from the power semiconductor prepackage. The power electronics converter includes a thermal interface layer arranged between the heat removal side of the power semiconductor prepackage and the heat sink.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: April 25, 2023
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Uwe Waltrich, Stanley Buchert, Marco Bohlländer, Claus Müller
  • Patent number: 11634034
    Abstract: A power electronics converter includes a converter commutation cell having a power circuit and a gate driver circuit. The power circuit includes at least one power semiconductor switching element and at least one capacitor. Each power semiconductor switching element is included in a power semiconductor prepackage. The gate driver circuit is configured to provide switching signals to a gate terminal of each power semiconductor switching element, and a peak rated power output of the power electronics converter is greater than 25 kW and a value of a converter parameter ? is less than or equal to 150 fFs/W, where the converter parameter ? is a total rated capacitance of the at least one capacitor of the power circuit divided by a product of the peak rated power output of the power electronics converter and a maximum switching frequency of the switching signals.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: April 25, 2023
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventors: Uwe Waltrich, Stanley Buchert
  • Publication number: 20210153394
    Abstract: The disclosure specifies an arrangement including a circuit carrier board on which is mounted at least one electrical/electronic component. At least one heat pipe is formed in the circuit carrier board. The disclosure also specifies a power converter including the arrangement, and an aircraft including a power converter.
    Type: Application
    Filed: April 9, 2019
    Publication date: May 20, 2021
    Inventors: Gerhard Mitic, Stanley Buchert, Uwe Waltrich, Antonio Zangaro
  • Patent number: 10705491
    Abstract: A hydraulic system having a hydraulic device and at least one external database is provided. The hydraulic device comprises at least one hydraulic component, a control electronics having a memory to control the hydraulic component, and an identification element assigned to the hydraulic component. Specific parameters for the hydraulic component are stored in the external database, and the hydraulic component can be clearly identified by a configuration means via the identification element. The configuration means can be connected to the control electronics and the external database to access the specific parameters so that these can be transferred to the memory of the control electronics by means of the configuration means. Further, the disclosure relates to a method for parameterizing control electronics of a hydraulic device of a hydraulic system as well as an arithmetic unit for compiling a program code for the operation of a hydraulic assembly with several components.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 7, 2020
    Assignee: HAWE HYDRAULIK SE
    Inventors: Johannes Glaser, Stanley Buchert, Paul Siegel, Timotheus Wieringa
  • Publication number: 20170293271
    Abstract: A hydraulic system having a hydraulic device and at least one external database is provided. The hydraulic device comprises at least one hydraulic component, a control electronics having a memory to control the hydraulic component, and an identification element assigned to the hydraulic component. Specific parameters for the hydraulic component are stored in the external database, and the hydraulic component can be clearly identified by a configuration means via the identification element. The configuration means can be connected to the control electronics and the external database to access the specific parameters so that these can be transferred to the memory of the control electronics by means of the configuration means. Further, the disclosure relates to a method for parameterizing control electronics of a hydraulic device of a hydraulic system as well as an arithmetic unit for compiling a program code for the operation of a hydraulic assembly with several components.
    Type: Application
    Filed: April 11, 2017
    Publication date: October 12, 2017
    Applicant: HAWE HYDRAULIK SE
    Inventors: Johannes GLASER, Stanley BUCHERT, Paul SIEGEL, Timotheus WIERINGA