Patents by Inventor Jannik Robin Schaefer

Jannik Robin Schaefer 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: 11894775
    Abstract: A power conversion method is disclosed. The method includes operating a PFC converter configured to receive three input voltages and provide a DC link voltage between DC link nodes in one of at least two different operating modes, and operating an SR converter coupled to the PFC converter via the DC link nodes in one of at least two different operating modes dependent on an output voltage of the SR converter. Operating the SR converter includes regulating a voltage level of the DC link voltage dependent on a DC link voltage reference, and the at least two different operating modes of the SR converter include a buck mode and a series resonant mode.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: February 6, 2024
    Assignee: Infineon Technologies Austria AG
    Inventors: Johann Walter Kolar, Yunni Li, Jannik Robin Schaefer
  • Patent number: 11817243
    Abstract: The invention relates to an inductive component having a planar conductive track structure. The planar conductive track structure is surrounded along a predetermined section by a ferromagnetic core. For targeted control of the current flow inside the planar conductive track structure and, in particular, of the current density in the cross-section of the planar conductive track structure, gaps are provided in a targeted manner in the ferromagnetic core. The gaps in the ferromagnetic core are arranged in regions above and/or below the planar conductive track structure.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: November 14, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Jannik Robin Schaefer, Dominik Bortis, Johann W. Kolar
  • Patent number: 11569737
    Abstract: The invention relates to the galvanically isolated transmission of electrical power between three voltage systems. For this purpose, a transformer is provided which comprises a total of five windings. The transmission between the individual voltage systems can be controlled by targeted manner activation of the individual windings.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 31, 2023
    Assignee: Robert Bosch GmbH
    Inventors: Johann W. Kolar, Dominik Bortis, Jannik Robin Schaefer
  • Publication number: 20220085725
    Abstract: A power conversion method is disclosed. The method includes operating a PFC converter configured to receive three input voltages and provide a DC link voltage between DC link nodes in one of at least two different operating modes, and operating an SR converter coupled to the PFC converter via the DC link nodes in one of at least two different operating modes dependent on an output voltage of the SR converter. Operating the SR converter includes regulating a voltage level of the DC link voltage dependent on a DC link voltage reference, and the at least two different operating modes of the SR converter include a buck mode and a series resonant mode.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 17, 2022
    Inventors: Johann Walter Kolar, Yunni Li, Jannik Robin Schaefer
  • Publication number: 20200411222
    Abstract: The invention relates to an inductive component having a planar conductive track structure. The planar conductive track structure is surrounded along a predetermined section by a ferromagnetic core. For targeted control of the current flow inside the planar conductive track structure and, in particular, of the current density in the cross-section of the planar conductive track structure, gaps are provided in a targeted manner in the ferromagnetic core. The gaps in the ferromagnetic core are arranged in regions above and/or below the planar conductive track structure.
    Type: Application
    Filed: March 1, 2019
    Publication date: December 31, 2020
    Inventors: Jannik Robin Schaefer, Dominik Bortis, Johann W. Kolar
  • Publication number: 20200381176
    Abstract: The invention relates to the galvanically isolated transmission of electrical power between three voltage systems. For this purpose, a transformer is provided which comprises a total of five windings. The transmission between the individual voltage systems can be controlled by targeted manner activation of the individual windings.
    Type: Application
    Filed: November 22, 2018
    Publication date: December 3, 2020
    Inventors: Johann W. Kolar, Dominik Bortis, Jannik Robin Schaefer
  • Patent number: 10819241
    Abstract: A converter for controlling power flows between three electricity networks with different operating voltages. The converter includes, in one implementation, three terminals and two converter cells. Each of the three terminals are configured to electrically contact-connect one of the three electricity networks. Each of the two converter cells includes a transformer having three converter cells. One of the terminals is connected to a series circuit of the converter cells. Another of the terminals is connected to a parallel circuit of the converter cells.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: October 27, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Dominik Bortis, Jannik Robin Schaefer, Johann W. Kolar
  • Publication number: 20200076311
    Abstract: The invention relates to a converter (K) for controlling power flows between at least three power networks (QAC, QHV, QNV) having different operating voltages (UA, UB, UC). The converter comprises at least three terminals (A, B, C), each of which is configured for electrically contacting one of the three power networks (QNV, QHV, QAC), and at least two converter cells (Z1, Z2), each having a transformer (T) having at least three transformer coils (W1,A, W1,B, W1,C, W2,A, W2,B, W2,C). At least one of the terminals (A, B, C) is connected to a series connection of converter cells (Z1, Z2), whereas at least one of the other terminals (A, B, C) is connected to parallel connection of converter cells (Z1, Z2) via a bidirectional serial line.
    Type: Application
    Filed: March 27, 2018
    Publication date: March 5, 2020
    Inventors: Dominik Bortis, Jannik Robin Schaefer, Johann W. Kolar