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Title:
DRIVER FOR BRUSHLESS MOTOR
Document Type and Number:
Japanese Patent JPH07241095
Kind Code:
A
Abstract:

PURPOSE: To reduce power consumption by reducing the iron loss of a motor while furthermore reducing the copper loss and the saturation of a switching element by decreasing the motor current.

CONSTITUTION: A driver for a brushless motor 1 including a rotor 4 having a permanent magnet and a stator 3 having windings 2U, 2V, 2W for a plurality of phases comprises transistors 10-15 for conducting the windings 2U, 2V, 2W sequentially at a timing corresponding to the position of the rotor 4, and a control circuit 32 for turning the transistors 10-15 ON/OFF to feed the winding 2U, 2V, 2W with a PWM sine wave voltage.


Inventors:
KATO SEIJI
HIRATA MASAMI
SHIRONOKUCHI HIDEKI
Application Number:
JP2772394A
Publication Date:
September 12, 1995
Filing Date:
February 25, 1994
Export Citation:
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Assignee:
KANSAI ELECTRIC POWER CO
TOSHIBA CORP
International Classes:
H02P6/08; H02P6/06; H02P6/14; H02P6/28; (IPC1-7): H02P6/08; H02P6/14
Attorney, Agent or Firm:
Tsuyoshi Sato



 
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