Patents by Inventor Marc Debruyne

Marc Debruyne 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).

  • Voltage lowering device and asynchronous traction system supplied from a single-phase mains supply incorporating a device of this kind
    Patent number: 5687071
    Abstract: A voltage lowering device includes at least one pair of forced commutation single-phase rectifiers connected to secondary windings of a main traction transformer. The power drawn from a direct current mains power supply passes through the main traction transformer and is recovered at a secondary winding by means of a forced commutation single-phase rectifier operating as a voltage increasing controlled rectifier. The other forced commutation single-phase rectifiers operate as synchronous voltage inverters. An asynchronous traction system supplied by a single-phase mains power supply includes a voltage lowering device as previously described.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: November 11, 1997
    Assignee: Gec Alsthom Transport SA
    Inventors: Marc Debruyne, Rong Fan Liu