Method and system for providing spindle motor control for head loading in a disk drive
US6388832B1 · kind B1 · utility
8Cited by
7References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1999 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Apr 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Method and system aspects for controlling spindle motor speed during head loading in a disk drive are described. The aspects include inputting a time-varying reference velocity profile signal, and selecting a controller to control spindle motor speed. Further included is feeding forward control signals sufficient to precompensate for drag during a head loading event and maintain spindle motor speed within an operating tolerance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.