Modification Or Waveshaping Of Switching Control Signal (e.g., Switching Control Input To Inverter, Etc.) Patents (Class 318/400.17)
  • Efficient AC circuit for motor with like number of poles and magnets
    Publication number: 20080116829
    Abstract: Simple AC circuitry driving a brush-less motor having a rotor consisting of alternate polarity permanent magnets poles, with the rotor journaled in a stator with a like number of wound poles having only two free ends for energizing. The motor is using only two AC electronic switches for starting and accelerating, and an AC switch to run the motor at synchronous speed. It has higher efficiency than previously known circuits, uses less parts and is less costly.
    Type: Application
    Filed: November 16, 2006
    Publication date: May 22, 2008
    Inventor: Sten R. Gerfast