Storage device and method of controlling spindle motor of storage device
US7768734B2 · kind B2 · utility
1Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2008 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Sep 29, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2054
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a storage device, before activating a spindle motor (SPM) or continuously from activation until the SPM is stabilized at a target number of rotations, a voltage and temperature monitoring unit monitors the temperature in a disk enclosure unit and the voltage to be applied to an SPM driver. A current limit value calculating unit calculates an optimum current limit value not exceeding a rated current of the SPM driver, and a motor controlling unit controls the SPM driver and changes the current to be applied to the SPM so that the current does not exceed this optimum current limit value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.