Patents by Inventor Praveen Choudhary

Praveen Choudhary 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).

  • Magnetic gearing of permanent magnet brushless motors
    Patent number: 7382103
    Abstract: A permanent magnet brushless 3-phase motor comprises windings R, Y, B, each divided into a plurality of sections 1-5 and switch means S1-S12 for selectively connecting the section of the respective winding e.g. R in series and/or parallel with all other sections of that winding R. Control means are provided for actuating the switch means S1-S12 to connect the winding sections 1-5 in different configurations while the motor is running to alter the speed/torque characteristics of the motor.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: June 3, 2008
    Assignee: Electronica Products Limited
    Inventors: Nabeel Ahmed Shirazee, Praveen Choudhary
  • Magnetic gearing of permanent magnet brushless motors
    Publication number: 20070024220
    Abstract: A permanent magnet brushless 3-phase motor comprises windings R, Y, B, each divided into a plurality of sections 1-5 and switch means S1-S12 for selectively connecting the section of the respective winding e.g. R in series and/or parallel with all other sections of that winding R. Control means are provided for actuating the switch means S1-S12 to connect the winding sections 1-5 in different configurations whilst the motor is running to alter the speed/torque characteristics of the motor.
    Type: Application
    Filed: October 22, 2004
    Publication date: February 1, 2007
    Inventors: Nabeel Shirazee, Praveen Choudhary