Patents by Inventor Stefan Zeltner

Stefan Zeltner 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: 11190003
    Abstract: A method for controlling a charging apparatus of a vehicle, in particular an electric or hybrid vehicle, wherein the charging apparatus has a charging device including a protection and monitoring device. The vehicle includes a high-voltage on-board power system and an electrical energy storage apparatus connected to the high-voltage on-board power system. The method includes electrically connecting the high-voltage on-board power system to charging connections of an energy supply system by the charging apparatus. The charging connections include a neutral conductor, a protective conductor and at least one phase conductor. A protective conductor resistance is detected between the neutral conductor and the protective conductor by feeding in a test current by the protection and monitoring device. A frequency of the test current is filtered out of the compensation frequency range on a narrowband basis.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: November 30, 2021
    Inventors: Tim Pfizenmaier, Daniel Spesser, Michael Kammer, Florian Habel, Eckhard Broeckmann, Frank Mehling, Michael Guenther Zeyen, Wolfgang Hofheinz, Guenter Uhl, Dietmar Bytzek, Juergen Hetzler, Stefan Zeltner, Stefan Endres, Christoph Sessler
  • Publication number: 20190270382
    Abstract: A method for controlling a charging apparatus of a vehicle, in particular an electric or hybrid vehicle, wherein the charging apparatus has a charging device including a protection and monitoring device. The vehicle includes a high-voltage on-board power system and an electrical energy storage apparatus connected to the high-voltage on-board power system. The method includes electrically connecting the high-voltage on-board power system to charging connections of an energy supply system by the charging apparatus. The charging connections include a neutral conductor, a protective conductor and at least one phase conductor. A protective conductor resistance is detected between the neutral conductor and the protective conductor by feeding in a test current by the protection and monitoring device. A frequency of the test current is filtered out of the compensation frequency range on a narrowband basis.
    Type: Application
    Filed: March 4, 2019
    Publication date: September 5, 2019
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Tim Pfizenmaier, Daniel Spesser, Michael Kammer, Florian Habel, Eckhard Broeckmann, Frank Mehling, Michael Guenther Zeyen, Wolfgang Hofheinz, Guenter Uhl, Dietmar Bytzek, Juergen Hetzler, Stefan Zeltner, Stefan Endres, Christoph Sessler
  • Patent number: 9929566
    Abstract: A circuit includes an active element, a drive circuit for the active element and a control logic for providing a control signal for the drive circuit. Further, an interface circuit is provided, which includes a primary terminal for receiving a primary signal and a secondary terminal that is galvanically isolated from the primary terminal. The interface circuit is implemented to provide the primary signal received at the primary terminal to the control logic via the secondary terminal, and to provide, based on the primary signal received at the primary terminal, by means of a rectifier circuit, an auxiliary energy signal for the drive circuit at the secondary terminal.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 27, 2018
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Stefan Zeltner, Stefan Endres
  • Publication number: 20160013655
    Abstract: A circuit includes an active element, a drive circuit for the active element and a control logic for providing a control signal for the drive circuit. Further, an interface circuit is provided, which includes a primary terminal for receiving a primary signal and a secondary terminal that is galvanically isolated from the primary terminal. The interface circuit is implemented to provide the primary signal received at the primary terminal to the control logic via the secondary terminal, and to provide, based on the primary signal received at the primary terminal, by means of a rectifier circuit, an auxiliary energy signal for the drive circuit at the secondary terminal.
    Type: Application
    Filed: September 25, 2015
    Publication date: January 14, 2016
    Inventors: Stefan Zeltner, Stefan Endres
  • Publication number: 20090139690
    Abstract: A heat sink includes a base body of an electrically insulating material and one or several metallic molded parts having a mounting portion and a heat-transfer portion, wherein the heat-transfer portion is mechanically connected to the base body. The heat sink can be inserted on a printed circuit board having several heat sources that can be at different electrical potentials, wherein the mounting portions of the molded parts are soldered to respective heat sources or close to the respective heat sources.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Applicant: Fraunhofer-Gesellschaft zur, Foerderung der angewandten, Forschung e. V.
    Inventors: Martin MAERZ, Dimitar Tchobanov, Bernd Eckhardt, Stefan Zeltner, Sven Egelkraut, Simon Amesoeder