Title:
DRIVE MODE SWITCHING CIRCUIT OF MOTOR, DRIVE CONTROLLER OF MOTOR, AND DRIVE CONTROL METHOD OF MOTOR
Document Type and Number:
Japanese Patent JP2015027180
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To switch a drive mode of a motor by a simple and inexpensive configuration.SOLUTION: A drive controller 10 drives a motor 50. A drive mode switching circuit 16 included in the drive controller 10 compares input timing between an encoder timing signal ENC based on an encoder signal Se from an encoder 30 which detects a rotor position of the motor 50 with a stepper drive timing signal STP based on a drive pulse signal Sp from outside. The drive mode switching circuit 16 outputs the drive mode switching signal Sc so as to switch from a control of a stepping motor mode to a control of a brushless motor mode when the stepper drive timing signal STP overtakes the encoder timing signal ENC, and switch from the control of the brushless motor mode to the control of the stepping motor mode when the encoder timing signal ENC overtakes the stepper drive timing signal STP.
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Inventors:
KOMATSU TAKAHIKO
Application Number:
JP2013155327A
Publication Date:
February 05, 2015
Filing Date:
July 26, 2013
Export Citation:
Assignee:
MINEBEA CO LTD
International Classes:
H02P8/38
Attorney, Agent or Firm:
Michizo Isono
Etsuo Tada
Etsuo Tada
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