Drive control system of stepping motor and drive control method

Details Drive control system of stepping motor and drive control method Drive control system of stepping motor and drive control method

2007-09-19

2011-11-29

Santana, Eduardo Colon (Department: 2837)

Electricity: motive power systems

Open-loop stepping motor control systems

C318S685000, C116S062100, C116S047000, C116S288000

Reexamination Certificate

active

08067919

ABSTRACT:
A drive control device and a drive control method for a stepping motor are provided to reduce the number of parts and generation of vibration and noise by a stepping motor. The drive control device controls a drive frequency of the stepping motor according to a measurement value inputted. The drive control device includes storage means for storing the resonance frequency of the stepping motor based on its resonance characteristic as an output-inhibited drive frequency and control means for calculating an instruction angle for operating a needle according to the measurement value, acquiring a first drive frequency of the stepping motor, judging whether the first drive frequency is the output-inhibited drive frequency, and deciding the drive frequency by replacing the first drive frequency with the second drive frequency which is lower than the output-inhibited drive frequency if the first drive frequency is the output-inhibited drive frequency.

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Machine Translation of JP9140193(A) May 27, 1997 Inventors: Fujimori Norio; Nakane Hideyuki Title: Driver for Stepping Motor and Indicating Instrument.

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