Data storage device comprising slew rate anti-windup compensation for microactuator
US9007714B1 · kind B1 · utility
4Cited by
331References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2014 |
| Grant date | Apr 14, 2015 |
| Priority date | — |
| Expiry date | Jul 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5552
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A data storage device is disclosed comprising a disk, a head, and a microactuator configured to actuate the head over the disk. An input signal to a compensator is generated, wherein the compensator is configured to generate a microactuator control signal. A slew rate signal representing a slew rate of the microactuator control signal is generated and applied to a first saturator configured to generate a saturated slew rate signal. The input signal is adjusted based on the slew rate saturation signal, and the microactuator is controlled based on the microactuator control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.