Patents by Inventor Todd J. Kazmirski

Todd J. Kazmirski 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: 5546295
    Abstract: Due to the intermittent nature of electrical connection through moving contacts on electrically propelled vehicles, electrical power converters such as power supplies and inverters are subject to large voltage transients. For compactness and low weight, a high-frequency power converter comprised series-connected high-speed switching circuits, so that an input voltage with voltage transients is split between the switching circuits. As a result, lower-rated switching elements such as IGBT's and MOSFET's can be used while maintaining resistance to input-voltage transients.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: August 13, 1996
    Assignee: Rotron Incorporated
    Inventors: Ralph Prete, Vladimir Brunstein, Todd J. Kazmirski