Title:
THREE-PHASE BRUSHLESS MOTOR
Document Type and Number:
Japanese Patent JPH06261518
Kind Code:
A
Abstract:
PURPOSE: To provide a three-phase brushless motor the speed of which can be accurately controlled with a simple constitution even when the motor is rotated at a low speed.
CONSTITUTION: The title motor is provided with two pole position detecting means 5 and 6 which detect the rotational position of a rotor 2 and speed detecting means having encoder magnets 17 the number of which is 2n times of the number of poles of rotor magnets 3 attached to a rotor 2 and the dead points of the rotor magnets 3 are aligned with those of the encoder magnets 17.
Inventors:
NAGAHISA TETSURO
NISHIDA KAZUO
YAMASHITA HIDEKAZU
ZAIZEN KATSUNORI
KONDO NORIMASA
NISHIDA KAZUO
YAMASHITA HIDEKAZU
ZAIZEN KATSUNORI
KONDO NORIMASA
Application Number:
JP4483093A
Publication Date:
September 16, 1994
Filing Date:
March 05, 1993
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H02K29/00; H02K29/08; H02K29/14; H02P6/06; (IPC1-7): H02K29/08; H02K29/00; H02K29/14; H02P6/02
Attorney, Agent or Firm:
Akira Kobiji (2 outside)