Title:
STEPPING MOTOR DRIVE CONTROL DEVICE AND DRIVE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2008/053640
Kind Code:
A1
Abstract:
Provided are a stepping motor drive control device and a drive control method
capable of suppressing increase of the number of parts and generation of vibration
and noise by a stepping motor by using simple control. The drive control device
for a stepping motor (5) which controls a drive frequency of the stepping motor
(5) according to a measurement value inputted at a predetermined cycle. The drive
control device includes storage means (8) which stores the resonance frequency
of the stepping motor (5) based on the resonance characteristic of the stepping
motor (5) as an output inhibit drive frequency; and control means which calculates
an instruction angle for operating a needle (3) in accordance with the measurement
value, acquires a first drive frequency of the stepping motor (5), judges whether
the calculated first drive frequency is the output inhibit drive frequency,
and decides the drive frequency by replacing the first drive frequency with the
second drive frequency lower than the output inhibit drive frequency if the first
drive frequency is the output inhibit drive frequency.
More Like This:
| JPS62112272 | MAGNETIC RECORDING AND REPRODUCING DEVICE |
| JPH02155495 | DRIVE |
Inventors:
SASAKI KATSUHIRO
OGURO YUJI
OGURO YUJI
Application Number:
PCT/JP2007/068108
Publication Date:
May 08, 2008
Filing Date:
September 19, 2007
Export Citation:
Assignee:
NIPPON SEIKI CO LTD (JP)
SASAKI KATSUHIRO
OGURO YUJI
SASAKI KATSUHIRO
OGURO YUJI
International Classes:
H02P8/14
Foreign References:
| JPH09140193A | 1997-05-27 | |||
| JPS56124945A | 1981-09-30 | |||
| JP2000352782A | 2000-12-19 | |||
| JPS58109983A | 1983-06-30 | |||
| JPH0736599U | 1995-07-04 | |||
| JPH07298691A | 1995-11-10 | |||
| JPH09140193A | 1997-05-27 |
Other References:
See also references of EP 2071718A4
Download PDF: