Patents by Inventor Hartmut Barnhusen

Hartmut Barnhusen 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).

  • Circuit for protecting a DC network with DC loads against overvoltage
    Patent number: 8369050
    Abstract: A circuit (S) for protecting a DC network having DC loads (1) and connectable to the circuit (S), the circuit (S) is suitable and configured to supply the DC network with electric power via a three-phase rectifier (G) and wherein the circuit (S) includes a means (2, 3, 4, TH1, LS, CS, DU, DV, DW) for detecting an overvoltage, wherein the means is suitable and configured to detect an overvoltage at the input of the DC network, and the circuit (S) includes a means (2, 3, 4, TH1, LS, CS, DU, DV, DW) for transferring a current, wherein the means is suitable and configured to supply current to one or several current-carrying thyristors (THU1, THV1, THW1) of the rectifier (G), wherein the current causes the thyristor or thyristors (THU1, THV1, THW1) to turn off as soon as the detection means has detected an overvoltage.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: February 5, 2013
    Assignee: AEG Power Solutions B.V.
    Inventors: Hartmut Barnhusen, Paul Maiberg
  • CIRCUIT FOR PROTECTING A DC NETWORK WITH DC LOADS AGAINST OVERVOLTAGE
    Publication number: 20090262469
    Abstract: A circuit (S) for protecting a DC network having DC loads (1) and connectable to the circuit (S), the circuit (S) is suitable and configured to supply the DC network with electric power via a three-phase rectifier (G) and wherein the circuit (S) includes a means (2, 3, 4, TH1, LS, CS, DU, DV, DW) for detecting an overvoltage, wherein the means is suitable and configured to detect an overvoltage at the input of the DC network, and the circuit (S) includes a means (2, 3, 4, TH1, LS, CS, DU, DV, DW) for transferring a current, wherein the means is suitable and configured to supply current to one or several current-carrying thyristors (THU1, THV1, THW1) of the rectifier (G), wherein the current causes the thyristor or thyristors (THU1, THV1, THW1) to turn off as soon as the detection means has detected an overvoltage.
    Type: Application
    Filed: April 7, 2009
    Publication date: October 22, 2009
    Applicant: AEG POWER SOLUTIONS B.V.
    Inventors: Hartmut BARNHUSEN, Paul MAIBERG