Patents by Inventor Klaus Marahrens

Klaus Marahrens 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: 9912222
    Abstract: A circuit configuration and system of capacitors for a converter having a filter system, the circuit configuration including a converter, which has an alternating voltage connection, especially for a multiphase input- or output-side alternating voltage source, and a unipolar connection on the input or output side, especially a direct voltage connection, especially for a voltage intermediate circuit, the alternating voltage connection being connected to phase lines, especially to three phase lines, the phase lines having inductances, in particular, characterized in that first capacitances are situated between a phase line and a common star point in each case, it being the case, in particular, that one of the first capacitances is situated between a particular phase line, especially each phase line, and the common star point, it being the case, in particular, that each of the first capacitances is of equal size.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: March 6, 2018
    Assignee: SEW-EURODRIVE GMBH & CO. KG
    Inventor: Klaus Marahrens
  • Publication number: 20150103570
    Abstract: A circuit configuration and system of capacitors for a converter having a filter system, the circuit configuration including a converter, which has an alternating voltage connection, especially for a multiphase input- or output-side alternating voltage source, and a unipolar connection on the input or output side, especially a direct voltage connection, especially for a voltage intermediate circuit, the alternating voltage connection being connected to phase lines, especially to three phase lines, the phase lines having inductances, in particular, characterized in that first capacitances are situated between a phase line and a common star point in each case, it being the case, in particular, that one of the first capacitances is situated between a particular phase line, especially each phase line, and the common star point, it being the case, in particular, that each of the first capacitances is of equal size.
    Type: Application
    Filed: March 4, 2013
    Publication date: April 16, 2015
    Inventor: Klaus Marahrens