Title:
SPEED CONTROL METHOD FOR COMMUTATORLESS MOTOR
Document Type and Number:
Japanese Patent JP3144447
Kind Code:
B2
Abstract:
PURPOSE: To see that the revolution of a commutatorless motor does not go up or go down excessively, and that such things that the revolution does not go up or go down much do not occur, in the speed control method for a commutatorless motor.
CONSTITUTION: This is a speed control method for a commutatorless motor, which controls the rise speed or the fall speed of the revolution by varying the rate of changing the voltage applied to a commutatorless motor 1 so as to make the revolution of the motor 1 the target revolution. And, a controller 9 detects the revolution, based on the detection signal by a rotor position detector 5, and also calculates the rise speed and fall speed of the detected present revolution, and compares the calculated rise speed or the fall speed with the target revolution rise speed or fall speed, and varies the rate of changing the application voltage of the motor, according to this comparison result, and besides varies the next interval.
Inventors:
Yoshiki Shinozaki
Application Number:
JP10772193A
Publication Date:
March 12, 2001
Filing Date:
April 09, 1993
Export Citation:
Assignee:
Fujitsu General Limited
International Classes:
H02P6/06; (IPC1-7): H02P6/06
Domestic Patent References:
| JP5843194A | ||||
| JP6162623A | ||||
| JP2197291A |
Attorney, Agent or Firm:
Takuya Ohhara
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