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Title:
CONTROLLING METHOD FOR PULSE MOTOR
Document Type and Number:
Japanese Patent JPS59153499
Kind Code:
A
Abstract:
PURPOSE:To control an accurate stopping position by switching a phase exciting system as required, thereby preveting the stepout of a pulse motor even in a range that high torque is necessary. CONSTITUTION:A cloth is moved for embroidery by moving via a pulse motor 2. A rotary encoder 3 produces a pulse signal in response to the rotating speed to an input counter 6 and a moving amount counter 7. Numeral 4 designates a spindle motor for driving the spindle of a sewing machine, and the output of an encoder 5 mounted on the shaft is fed to a microcomputer 9. The counter 6 outputs an output signal to a phase-exciting converter 8 and the microcomputer 9. The converter 8 outputs the exciting signal of the motor to stator coil phases on the basis of the number of steps.

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Inventors:
NISHINO KENJIROU
Application Number:
JP2664983A
Publication Date:
September 01, 1984
Filing Date:
February 18, 1983
Export Citation:
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Assignee:
NAKANIHON SYSTEM KK
International Classes:
H02P8/00; H02P8/14; H02P8/38; (IPC1-7): H02P8/00
Domestic Patent References:
JPS5658800A1981-05-21
JPS5738118A1982-03-02
Attorney, Agent or Firm:
Adachi Tsutomu



 
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