Disk drive having improved head-velocity control, and method the

Details Disk drive having improved head-velocity control, and method the Disk drive having improved head-velocity control, and method the

1999-05-10

2000-04-25

Nappi, Robert E.

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318632, 360 7807, G05D 23275

Patent

active

060548339

ABSTRACT:
A disk drive has a servo controller that regulates the velocity of a data-transducing head as the head is moved between a parked position and a data-transducing position within the drive. The head is coupled to a suspension arm. The suspension arm is coupled to an actuator motor that produces an output. This output moves the head between the above-noted positions. The suspension arm engages a head-loading ramp within the drive as the head is moved between its parked and data-transducing positions. This engagement generates a frictional force. The controller attenuates variations in the velocity of the head caused by variations in the frictional force. This is accomplished by varying the motor output based on a predetermined relationship between the head velocity and the frictional force.

REFERENCES:
patent: 4864437 (1989-09-01), Couse et al.
patent: 4933785 (1990-06-01), Morehouse et al.
patent: 5034837 (1991-07-01), Schmitz
patent: 5235482 (1993-08-01), Schmitz
patent: 5327059 (1994-07-01), Truong et al.
patent: 5615064 (1997-03-01), Blank et al.
patent: 5828522 (1998-10-01), Brown et al.
patent: 5831786 (1998-11-01), Boutaghou et al.
patent: 5859358 (1999-01-01), Wood et al.
patent: 5949612 (1999-09-01), Gudeman et al.
patent: 5991114 (1999-11-01), Huang et al.

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