Title:
CONTROLLER OF COMMUTATORLESS MOTOR
Document Type and Number:
Japanese Patent JPS6020788
Kind Code:
A
Abstract:
PURPOSE:To produce the motor torque to the maximum limit by accelerating the stator coil energization starting position proportionally to the rotating speed of a rotor in the rotor rotating direction while maintaining the breaking position of the stator coil current to the rotor position constant. CONSTITUTION:A position signal for energizing a current to stator coils 21-23 is obtained by inputted the outputs of a position detecting magnet 28 coupled directly to a rotor, Hall sensors 29-31, and rotor speed detector 32 to a calculator 33 and calculating them. This position signal is supplied to a base drive circuit 34, power transistors 25-27 are turned ON/OFF to energize the motor. The interrupting position of the stator coil current to the rotor position is maintained substantially constant, and the stator coil energizing starting position is accelerated proportionally to the rotor rotating speed in the rotor rotating direction.
Inventors:
KITAYAMA HIROYASU
KATAOKA JIROU
KATAOKA JIROU
Application Number:
JP12831983A
Publication Date:
February 02, 1985
Filing Date:
July 13, 1983
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02P6/06; H02P6/08; H02P6/15; H02P25/02; (IPC1-7): H02P6/02
Attorney, Agent or Firm:
Akira Kobiji (2 outside)