Faster access time in a disk drive by utilizing increased VCM potential voltage
US6181502A · kind A · utility
115Cited by
11References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1998 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jul 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5547
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive includes a voice coil motor (VCM) and a VCM power source circuit which is coupled to a standard power supply having a fixed voltage. During seek operations the VCM power source circuit provides a boosted voltage, greater than the fixed supply voltage, for the VCM. The VCM power source circuit provides the boosted voltage independently from the back EMF generated in the voice coil motor. The increased VCM voltage allows faster access times and more efficient VCM operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.