Patents by Inventor John Mark Reschovsky

John Mark Reschovsky 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).

  • Method and apparatus for fault detection of series diodes in rectifiers
    Patent number: 9160164
    Abstract: A method and apparatus for fault detection of series diodes in rectifiers is disclosed, wherein the voltages across one or both of the individual diodes, and/or the voltage across the pair of diodes are measured to determine a ratio between two of those voltages. The ratio is then analyzed to determine if a fault (e.g., a short circuit or an open circuit) is present. In some embodiments, circuitry can be included to compensate for the normal variations in diode characteristics (e.g., reverse leakage current, reverse recovery charge) between the pair of series diodes to minimize the potential for erroneous fault detection.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 13, 2015
    Assignee: Accumetrics, Inc.
    Inventors: John Mark Reschovsky, Staci Jane Elaan, Walter Reisinger
  • METHOD AND APPARATUS FOR FAULT DETECTION OF SERIES DIODES IN RECTIFIERS
    Publication number: 20110216449
    Abstract: A method and apparatus for fault detection of series diodes in rectifiers is disclosed, wherein the voltages across one or both of the individual diodes, and/or the voltage across the pair of diodes are measured to determine a ratio between two of those voltages. The ratio is then analyzed to determine if a fault (e.g., a short circuit or an open circuit) is present. In some embodiments, circuitry can be included to compensate for the normal variations in diode characteristics (e.g., reverse leakage current, reverse recovery charge) between the pair of series diodes to minimize the potential for erroneous fault detection.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 8, 2011
    Applicants: Andritz Hydro GmbH, Accumetrics Associates, Inc.
    Inventors: John Mark Reschovsky, Staci Jane Elaan, Walter Reisinger