METHOD AND DEVICE FOR CONTROLLING BRUSHLESS AC MOTOR

Title:

METHOD AND DEVICE FOR CONTROLLING BRUSHLESS AC MOTOR

Document Type and Number:

Japanese Patent JPS58108984

Kind Code:

A

Abstract:

A method and a device for controlling a brushless alternating current motor (23) driven by an inverter (31-36) connected to a direct current supply (24, 25). The direct current supplied to the inverter is rinsed. The signal is passed through a peak detector (41) to a regulator (45), which decreases its frequency controlling output signal if the peak value input signal exceeds a predetermined value. A control signal corresponding to the torque demand of the motor is also produced. This signal controls the voltage supplied to the motor. Negative pulses at the turning off of the inverter switches are also sensed and used for controlling the degree of magnetization of the motor.

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Inventors:

KAARU SUBERUKAA MAGUNUSON HARU
ERIKU ANDERUSU RIYUNKU
ERIKU MARUCHIN OOBERU

Application Number:

JP22038082A

Publication Date:

June 29, 1983

Filing Date:

December 17, 1982

Export Citation:

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Assignee:

INST SERATSUKU SA

International Classes:

D06F37/30; D06F33/02; D06F37/40; H02M7/5387; H02P6/06; H02P27/08; (IPC1-7): H02P5/00

Domestic Patent References:

JPS5250519A	1977-04-22
JP50155512B
JPS5130908A	1976-03-16

Attorney, Agent or Firm:

Shigeru Yagita

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