Method, medium, and apparatus controlling current gain...

Details Method, medium, and apparatus controlling current gain... Method, medium, and apparatus controlling current gain...

2005-12-08

2008-10-07

Donovan, Lincoln (Department: 2837)

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Running-speed control

Reexamination Certificate

active

07432673

ABSTRACT:
A method, medium, and apparatus for controlling a spindle motor of a disk drive. Particularly provided is a method, medium, and apparatus changing a current gain of a spindle motor driver according to the operating environment of the spindle motor. The method of controlling the spindle motor, using the current gain change of the spindle motor driver, includes monitoring a spindle drive control signal indicating the operating environment of the spindle motor and changing a current gain of the spindle motor driver based on the indicated operating environment.

REFERENCES:
patent: 6744587 (2004-06-01), Ang et al.
patent: 5-64475 (1993-03-01), None
patent: 10-112109 (1998-04-01), None
patent: 2003-173640 (2003-06-01), None

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