Patents by Inventor Michael Feldgen

Michael Feldgen 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: 10880970
    Abstract: A circuit arrangement for a vehicle for detecting a short circuit in a lighting unit with a plurality of light emitting diodes connected in series, comprising a shunt regulator, a setting unit for setting the shunt regulator to a reference voltage, a voltage determination unit for determining a string voltage of the series-connected light emitting diodes and the correspondingly set reference voltage of the shunt regulator, and a detection unit for detecting a short circuit in the lighting unit on the basis of the string voltage and the reference voltage. Furthermore, the invention relates to a corresponding method for detecting a short circuit, a computer program, a memory and a vehicle.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: December 29, 2020
    Assignee: Hella GmbH & Co. KGaA
    Inventor: Michael Feldgen
  • Publication number: 20200196421
    Abstract: A circuit arrangement for a vehicle for detecting a short circuit in a lighting unit with a plurality of light emitting diodes connected in series, comprising a shunt regulator, a setting unit for setting the shunt regulator to a reference voltage, a voltage determination unit for determining a string voltage of the series-connected light emitting diodes and the correspondingly set reference voltage of the shunt regulator, and a detection unit for detecting a short circuit in the lighting unit on the basis of the string voltage and the reference voltage. Furthermore, the invention relates to a corresponding method for detecting a short circuit, a computer program, a memory and a vehicle.
    Type: Application
    Filed: December 13, 2019
    Publication date: June 18, 2020
    Applicant: HELLA GmbH & Co. KGaA
    Inventor: Michael FELDGEN
  • Publication number: 20200180508
    Abstract: A circuit arrangement for detecting a short circuit in at least one light emitting diode of a lighting unit of a vehicle comprising a plurality of light emitting diodes connected in series, comprising a reference light emitting diode, a voltage sensing unit for determining a reference voltage at the reference light emitting diode and in each case one diode voltage at one of the light emitting diodes of the lighting unit, and a detection unit for detecting a short circuit in a light emitting diode on the basis of the reference voltage and a single diode voltage, wherein the reference light emitting diode and the light emitting diodes are identical light emitting diodes. Furthermore, the invention relates to a corresponding method for detecting a short circuit, a computer program, a memory and a vehicle.
    Type: Application
    Filed: December 6, 2019
    Publication date: June 11, 2020
    Applicant: HELLA GmbH & Co. KGaA
    Inventor: Michael FELDGEN
  • Publication number: 20040047105
    Abstract: A protecting device for electrical appliances, connected in series with an AC electric circuit of a power supply of the electrical appliance, having an electrically conductive winding, the winding comprising an ohmic resistance for restricting input currents, as well as an interruption function, and a coil form onto which the winding is applied in at least one winding layer, characterized in that the electrically conductive winding is a bifilar winding.
    Type: Application
    Filed: July 2, 2003
    Publication date: March 11, 2004
    Applicant: FRIWO Geratebau GmbH
    Inventors: Michael Bothe, Ralf Schroder Gen. Berghegger, Hubert Kisfeld, Michael Feldgen