Patents by Inventor Pasi Alapeltola

Pasi Alapeltola 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).

  • Restart control of an A.C. motor drive
    Publication number: 20080309282
    Abstract: Method of and system for controlling the restart of an A.C. motor drive comprising an A.C. motor (4), a power converter (20, 21, 22) for stepless speed control of the A.C. motor and a load switch (3) arranged between the power converter and the A.C motor, wherein when the power converter (20, 21, 22) detects the output current to go below a predefined limit during the load switch opening it goes to a continuous output sensing mode, and when the output current goes above a predefined limit during the output sensing mode the power converter restarts automatically to a desired operating state.
    Type: Application
    Filed: June 3, 2008
    Publication date: December 18, 2008
    Inventors: Brian Michael Morris, Jaakko Ollila, Stefan Strandberg, Ulf Backman, Lasse Kortelahti, Ahti Rauma, Pasi Alapeltola