Patents by Inventor Doyle Busse

Doyle Busse 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).

  • Stator resistance detector for use in electric motor controllers
    Patent number: 5502360
    Abstract: A non-invasive system for accurately determining the stator resistance in an electric motor during motor operation. The system includes a mechanism for determining the phase angle of the stator current within the dq frame of reference and a mechanism for transforming feedback voltages into a new frame of reference defined by this phase angle. Counter EMFs are detected which are free of stator resistance and used to force the counter EMF components of the stator winding voltages to conform to desired values. The stator resistance is then derived using simple mathematical relationships between the resistance, stator current, feedback voltage and known counter EMF values.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: March 26, 1996
    Assignee: Allen-Bradley Company, Inc.
    Inventors: Russel J. Kerkman, Brian J. Seibel, Doyle Busse