Motor controller

Details Motor controller Motor controller

2008-06-10

2010-11-30

Benson, Walter (Department: 2837)

Electricity: motive power systems

Positional servo systems

With stabilizing features

C318S607000, C318S615000, C318S616000

Reexamination Certificate

active

07843159

ABSTRACT:
A motor controller includes: a notch filter arranged inside a control system; an oscillation frequency estimating section which estimates an oscillation frequency component in a motor; and a notch control section which controls a notch filter so as to change a notch frequency and a notch width. The notch control section changes a frequency between an oscillation frequency and a notch frequency set in a notch filter as a new notch frequency, while changing a notch width to a new notch width such that the notch width is larger after the change than before the change.

REFERENCES:
patent: 4636700 (1987-01-01), Moore et al.
patent: 6144181 (2000-11-01), Rehm et al.
patent: 6936990 (2005-08-01), Oyama et al.
patent: 6963184 (2005-11-01), Carlson
patent: 7068923 (2006-06-01), Miyazaki
patent: 2003-052188 (2003-02-01), None

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