Patents by Inventor Ann-Katrin Gerlach

Ann-Katrin Gerlach 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).

  • Inverter
    Patent number: 7957168
    Abstract: An inverter (1) for feeding electric power into a utility grid (7) or into a load is described. The inverter (1) contains two direct voltage inputs (2, 3), one first intermediate circuit (8) connected thereto and comprising two series connected capacitors (C1, C2) that are connected together at a ground terminal (14), two alternating voltage outputs (5, 6) of which one at least is provided with a grid choke (L1) and one bridge section (10). In accordance with the invention, a second intermediate circuit (9) that is devised at least for selectively boosting the direct voltage and is intended for supplying the bridge section (10) with positive and negative voltage is interposed between the first intermediate circuit (8) and the bridge section (10).
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: June 7, 2011
    Assignee: SMA Solar Technology AG
    Inventors: Peter Zacharias, Jens Friebe, Felix Blumenstein, Ann-Katrin Gerlach, Jan Scheuermann, Matthias Zinn
  • Inverter
    Patent number: 7813153
    Abstract: An inverter (1) for feeding electric power into a utility grid (7) or into a load is described. The inverter (1) contains direct voltage inputs (2, 3), one first intermediate circuit (8) connected thereto and comprising two series connected capacitors (C1, C2) that are connected together at a ground terminal (14), two alternating voltage outputs (5, 6) of which one at least is provided with a grid choke (L1) and one bridge section (10).
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: October 12, 2010
    Assignee: SMA Solar Technology AG
    Inventors: Peter Zacharias, Jens Friebe, Felix Blumenstein, Ann-Katrin Gerlach, Jan Scheuermann, Matthias Zin
  • Inverter
    Publication number: 20090046491
    Abstract: An inverter (1) for feeding electric power into a utility grid (7) or into a load is described. The inverter (1) contains direct voltage inputs (2, 3), one first intermediate circuit (8) connected thereto and comprising two series connected capacitors (C1, C2) that are connected together at a ground terminal (14), two alternating voltage outputs (5, 6) of which one at least is provided with a grid choke (L1) and one bridge section (10).
    Type: Application
    Filed: July 31, 2008
    Publication date: February 19, 2009
    Applicant: SMA Solar Technology AG
    Inventors: Peter Zacharias, Jens Friebe, Felix Blumenstein, Ann-Katrin Gerlach, Jan Scheuermann, Matthias Zinn
  • Inverter
    Publication number: 20090046492
    Abstract: An inverter (1) for feeding electric power into a utility grid (7) or into a load is described. The inverter (1) contains two direct voltage inputs (2, 3), one first intermediate circuit (8) connected thereto and comprising two series connected capacitors (C1, C2) that are connected together at a ground terminal (14), two alternating voltage outputs (5, 6) of which one at least is provided with a grid choke (L1) and one bridge section (10). In accordance with the invention, a second intermediate circuit (9) that is devised at least for selectively boosting the direct voltage and is intended for supplying the bridge section (10) with positive and negative voltage is interposed between the first intermediate circuit (8) and the bridge section (10).
    Type: Application
    Filed: July 31, 2008
    Publication date: February 19, 2009
    Applicant: SMA Solar Technology AG
    Inventors: Peter Zacharias, Jens Friebe, Felix Blumenstein, Ann-Katrin Gerlach, Jan Scheuermann, Matthias Zinn