Stepper motor device with compensating non-sinusoidal...

Details Stepper motor device with compensating non-sinusoidal... Stepper motor device with compensating non-sinusoidal...

2008-09-29

2011-10-04

Colon-Santana, Eduardo (Department: 2837)

Electricity: motive power systems

Positional servo systems

With particular motor control system responsive to the...

C318S696000, C702S105000

Reexamination Certificate

active

08030876

ABSTRACT:
A stepper motor device uses compensating non-sinusoidal driving values to compensate for operational non-sinusoidal drive characteristics of a motor of the device due to at least design and manufacturing imperfections in the motor. The compensating non-sinusoidal driving values may be derived using back electromagnetic force produced from the motor or using measured rotational positions of the motor when the motor is driven using known driving values.

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patent: 6747431 (2004-06-01), Marra et al.
patent: 7405532 (2008-07-01), Chang
patent: 7560893 (2009-07-01), Thomson
patent: 2002/0185926 (2002-12-01), King et al.
patent: 2010/0135709 (2010-06-01), McNestry et al.
patent: 2010/0244887 (2010-09-01), De Cock

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