Patents by Inventor Roger Dougal

Roger Dougal 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).

  • Methods and systems for protecting DC circuits
    Patent number: 9502884
    Abstract: Methods and systems for protecting DC circuits are provided. In an aspect, a method for controlling at least one protection circuit is disclosed. The method can monitor one or more parameters of the at least one protection circuit. One or more control signals can be selectively provided to a plurality of switches in the at least one protection circuit based on one or more parameters of the at least one protection circuit, in order to implement the appropriate protective topology based on one or more parameters of the at least one protection circuit. The method can be used to control a plurality of switches in the protection circuit and protect the DC circuit against short circuit, instabilities, and bus outages, and the like.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: November 22, 2016
    Assignee: University of South Carolina
    Inventors: Ugo Ghisla, Roger Dougal, Igor Kondratiev
  • Methods and Systems for Protecting DC Circuits
    Publication number: 20150103456
    Abstract: Methods and systems for protecting DC circuits are provided. In an aspect, a method for controlling at least one protection circuit is disclosed. The method can monitor one or more parameters of the at least one protection circuit. One or more control signals can be selectively provided to a plurality of switches in the at least one protection circuit based on one or more parameters of the at least one protection circuit, in order to implement the appropriate protective topology based on one or more parameters of the at least one protection circuit. The method can be used to control a plurality of switches in the protection circuit and protect the DC circuit against short circuit, instabilities, and bus outages, and the like.
    Type: Application
    Filed: August 15, 2014
    Publication date: April 16, 2015
    Inventors: Ugo Ghisla, Roger Dougal, Igor Kondratiev
  • Non-intrusive energy harvesting systems and methods
    Patent number: 8564298
    Abstract: In accordance with certain embodiments of the present disclosure, an energy harvesting system is provided. The system comprises a coil wound about a generally cylindrical shaped magnetic core having a first end and a second end. The coil includes wires that are wound in such a manner that the wires are generally parallel to the cylindrical shaped magnetic core axis. The cylindrical shaped magnetic core defines a core gap that extends parallel to the magnetic core axis. The cylindrical shaped magnetic core also defines an opening extending therethrough from the first end to the second end such that the cylindrical shaped magnetic core is configured to fit around current carrying conductor.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: October 22, 2013
    Assignee: University of South Carolina
    Inventors: Mohammod Ali, Rashed H. Bhulyan, Roger Dougal
  • Non-Intrusive Energy Harvesting Systems and Methods
    Publication number: 20120013292
    Abstract: In accordance with certain embodiments of the present disclosure, an energy harvesting system is provided. The system comprises a coil wound about a generally cylindrical shaped magnetic core having a first end and a second end. The coil includes wires that are wound in such a manner that the wires are generally parallel to the cylindrical shaped magnetic core axis. The cylindrical shaped magnetic core defines a core gap that extends parallel to the magnetic core axis. The cylindrical shaped magnetic core also defines an opening extending therethrough from the first end to the second end such that the cylindrical shaped magnetic core is configured to fit around current carrying conductor.
    Type: Application
    Filed: December 4, 2009
    Publication date: January 19, 2012
    Applicant: UNIVERSITY OF SOUTH CAROLINA
    Inventors: Mohammod Ali, Rashed H. Bhuiyan, Roger Dougal