Patents Assigned to Kabushiki Kaisha Toei Denki Seisakusho
  • Speed control systems of synchronous motors
    Patent number: 4384242
    Abstract: In a speed control system of a synchronous motor, a pulse modulated signal containing a signal representing rotational angle of the motor is formed to control the speed. The pulse modulated signal is passed through a synchronous rectifier to obtain currents supplied to stator windings of the motor.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: May 17, 1983
    Assignees: Toshiba Kikai Kabushiki Kaisha, Kabushiki Kaisha Toei Denki Seisakusho
    Inventor: Tadahiro Ono