Patents by Inventor Malcolm Eric Sparey

Malcolm Eric Sparey 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).

  • Motor drive voltage-boost control
    Patent number: 8004220
    Abstract: A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means arranged to provide drive signals to control the switch means; a power input for connection to a power supply at a nominal voltage; and boost means in electric communication with the power input and power output, and controllable to boost the nominal voltage to a higher voltage for application to the winding.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: August 23, 2011
    Assignee: TRW Limited
    Inventors: Malcolm Eric Sparey, Adrian Szabo, Graham William White, Jeffrey Ronald Coles, Connel Brett Williams, Yangsheng Chen
  • Motor Drive Voltage-Boost Control
    Publication number: 20080265808
    Abstract: A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the position of the rotor; control means arranged to provide drive signals to control the switch means; a power input for connection to a power supply at a nominal voltage; and boost means in electric communication with the power input and power output, and controllable to boost the nominal voltage to a higher voltage for application to the winding.
    Type: Application
    Filed: July 8, 2005
    Publication date: October 30, 2008
    Inventors: Malcolm Eric Sparey, Adrian Szabo, Graham William White, Jeffrey Ronald Coles, Connel Brett Williams, Yangsheng Chen