Torque disturbance precompensation for disk drive spindle motors

Electrical generator or motor structure – Dynamoelectric – Rotary


Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


318632, 360 7303, H02P 300




An apparatus and method for torque disturbance precompensation in a disk drive spindle motor includes an amplifier for providing current to the spindle motor in response to an input signal. A velocity detector determines the velocity of the motor, which is then compared to a predetermined velocity to generate an error signal. Compensator elements of the control loop develop an actuating signal from the error signal. The actuating signal is then summed with a torque correction value provided by a look-up table. The torque correction value precompensates the motor by causing the amplifier to provide an additional incremented current to the motor. The additional current corrects the torque disturbance resulting from the movement of the heads across the disk.

patent: 4139811 (1979-02-01), Klinger
patent: 4398227 (1983-08-01), Anderson
patent: 4507592 (1985-03-01), Anderson
patent: 4902949 (1990-02-01), Hirata
patent: 4979055 (1990-12-01), Squires et al.
patent: 5051976 (1991-09-01), Kawano et al.
patent: 5086421 (1992-02-01), Tateishi
patent: 5285378 (1994-02-01), Matsumoto
patent: 5305160 (1994-04-01), Funches et al.


Say what you really think

Search for the USA inventors and patents. Rate them and share your experience with other people.


Torque disturbance precompensation for disk drive spindle motors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Torque disturbance precompensation for disk drive spindle motors, we encourage you to share that experience with our community. Your opinion is very important and Torque disturbance precompensation for disk drive spindle motors will most certainly appreciate the feedback.

Rate now


Profile ID: LFUS-PAI-O-1376037

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.