Stepping motor drive

Details Stepping motor drive Stepping motor drive

2011-03-01

2011-03-01

Masih, Karen (Department: 2837)

Electricity: motive power systems

Open-loop stepping motor control systems

C318S685000

Reexamination Certificate

active

07898206

ABSTRACT:
A stepping motor drive is provided, by which a recoil movement of a driven member upon an initialization action can be reduced. The stepping motor drive includes: a drive signal supply means which supplies a plurality of periodic drive signals having different phases from each other to generate a rotation torque in a stepping motor, one electric cycle being constructed by a plurality of excitation steps; a control means which makes the drive signal supply means supply the drive signal upon a initialization action in which a driven member connected with rotation of the stepping motor is made abut against a stopper; and a first storing means which stores a torque control parameter according to an inversion phase characteristic intrinsic to the stepping motor.

REFERENCES:
patent: 2002/0189397 (2002-12-01), Sakamoto et al.
patent: 2004-364403 (2004-12-01), None
patent: 2008-029162 (2008-02-01), None

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