Patents by Inventor Philip Churn

Philip Churn 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).

  • Controller for a Permanent Magnet Generator and a Generator in Combination with Such a Controller
    Publication number: 20070210767
    Abstract: A generator controller for controlling a permanent magnet generator where each phase of the generator is connectable to a DC link via electrically controllable switches, the controller characterised by a data processor adapted to receive a measurement of generator current output and a demand current, and to form a current error between the demanded value and the measured generator current; derive a target voltage as a function of the current error; and form control signals for the electrically controllable switches as a function of the target voltage.
    Type: Application
    Filed: May 9, 2007
    Publication date: September 13, 2007
    Inventors: Philip Mellor, Stephen Burrow, Philip Churn
  • Controller for a permanent magnet generator and a generator in combination with such a controller
    Publication number: 20060273765
    Abstract: A generator controller for controlling a permanent magnet generator where each phase of the generator is connectable to a DC link via electrically controllable switches, the controller characterised by a data processor adapted to receive a measurement of generator current output and a demand current, and to form a current error between the demanded value and the measured generator current; derive a target voltage as a function of the current error; and form control signals for the electrically controllable switches as a function of the target voltage.
    Type: Application
    Filed: May 16, 2006
    Publication date: December 7, 2006
    Inventors: Philip Mellor, Stephen Burrow, Philip Churn