Patents by Inventor Bernhard KALKMANN

Bernhard KALKMANN 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: 11101681
    Abstract: A power converter arrangement, for feeding a plurality of energy stores of electrically driven vehicles has a transformer having a first multiphase winding and a plurality of second multiphase windings. The first winding is embodied to be connected to a power supply system, in particular to a medium-voltage power supply system, and the second windings are each connected to a first connection of an associated power converter. The invention also presents an installation having such a power converter arrangement, wherein the transformer is arranged in a weatherproof enclosure and at least a plurality of power converters form parts of respective charging stations.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: August 24, 2021
    Assignee: SEMIKRON ELEKTRONIK GmbH & CO KG
    Inventor: Bernhard Kalkmann
  • Publication number: 20180290548
    Abstract: A power converter arrangement, for feeding a plurality of energy stores of electrically driven vehicles has a transformer having a first multiphase winding and a plurality of second multiphase windings. The first winding is embodied to be connected to a power supply system, in particular to a medium-voltage power supply system, and the second windings are each connected to a first connection of an associated power converter. The invention also presents an installation having such a power converter arrangement, wherein the transformer is arranged in a weatherproof enclosure and at least a plurality of power converters form parts of respective charging stations.
    Type: Application
    Filed: February 14, 2018
    Publication date: October 11, 2018
    Applicant: SEMIKRON ELEKTRONIK GMBH & CO. KG
    Inventor: Bernhard Kalkmann
  • Patent number: 9521781
    Abstract: A power component device includes a heat sink having a recess with a base surface and a first side surface. The first side surface of the recess is at a generally acute angle relative to the base surface. The power component device includes a first passive electrical component with a support element, having a first side surface which faces the first side surface of the recess, and is at generally the same angle relative to the base surface as the first side surface of the recess is relative to the base surface. A pressure transmission element has a first side surface which is averted from the first side surface of the support element. The base surface is at a generally acute angle relative to the first pressure transmission element side surface. A pressure generating apparatus presses the support element against the first side surface of the recess.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: December 13, 2016
    Assignee: Semikron Elektronik GmbH & Co., KG
    Inventors: Thomas Frank, Bernhard Kalkmann, Liane Müller-Schmidt, Sven Teuber
  • Publication number: 20140176272
    Abstract: A power component device includes a heat sink having a recess with a base surface and a first side surface. The first side surface of the recess is at a generally acute angle relative to the base surface. The power component device includes a first passive electrical component with a support element, having a first side surface which faces the first side surface of the recess, and is at generally the same angle relative to the base surface as the first side surface of the recess is relative to the base surface. A pressure transmission element has a first side surface which is averted from the first side surface of the support element. The base surface is at a generally acute angle relative to the first pressure transmission element side surface. A pressure generating apparatus presses the support element against the first side surface of the recess.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 26, 2014
    Applicant: Semikron Elektronik GmbH & Co., KG
    Inventors: Thomas FRANK, Bernhard KALKMANN, Liane MÜLLER-SCHMIDT, Sven TEUBER