Control device for stepping motor

Details Control device for stepping motor Control device for stepping motor

2007-09-07

2009-12-01

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

C318S560000, C318S671000

Reexamination Certificate

active

07626352

ABSTRACT:
A control device for a stepping motor is provided that can reduce torque generated by a motor and control the expansion of a speed deviation when the rotational speed of a rotor exceeds a speed command. The control device includes first judging means (27) for judging whether a positional deviation of a rotor is within a predetermined range, second judging means (28) for judging whether a sign of the positional deviation and a sign of a speed deviation coincide with each other, and phase setting means (34to35) for setting a winding current command phase.

REFERENCES:
patent: 4803414 (1989-02-01), Kato
patent: 5523634 (1996-06-01), Takahashi et al.
patent: 6850027 (2005-02-01), Kuwano et al.
patent: 11-113289 (1999-04-01), None
patent: 3715276 (2005-09-01), None

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