Patents by Inventor Sadegh Vaez-Zadeh

Sadegh Vaez-Zadeh 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).

  • Efficiency maximization control and variable speed drive of single phase induction motors
    Patent number: 7768227
    Abstract: A control method and a control system for single phase induction motors driven by two-power electronic switch inverter are disclosed. The system fulfills two main tasks i.e. precise motor speed control and maximum motor efficiency control over wide ranges of motor load and speed command without a motor speed feedback.
    Type: Grant
    Filed: April 26, 2008
    Date of Patent: August 3, 2010
    Inventors: Sadegh Vaez-Zadeh, Bijan Zahedi
  • Efficiency Maximization Control and Variable Speed Drive of Single Phase Induction Motors
    Publication number: 20080218118
    Abstract: A control method and a control system for single phase induction motors driven by two-power electronic switch inverter are disclosed. The system fulfills two main tasks i.e. precise motor speed control and maximum motor efficiency control over wide ranges of motor load and speed command without a motor speed feedback.
    Type: Application
    Filed: April 26, 2008
    Publication date: September 11, 2008
    Inventors: Sadegh Vaez-Zadeh, Bijan Zahedi