Method and apparatus for measuring the back EMF of a disc drive VCM
US6937427B2 · kind B2 · utility
8Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Sep 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5521
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method of measuring a back electromotive force (BEMF) voltage of a disc drive voice coil motor (VCM) is provided in which a temperature of the VCM is obtained. The BEMF voltage of the VCM is computed as a function of the temperature of the VCM.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.