Control system of motors for rotating a disk and for positioning heads of a mass storage disk device
US7332886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Feb 19, 2008 |
| Priority date | — |
| Expiry date | Aug 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/28
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An integrated control and power driving system moves a read/write head carrying arm over the surface of a disk. The integrated control and power driving system is applicable to a spindle motor, a mass storage disk drive and a voice-coil motor, for example, and includes a first chip and a second chip. The first chip integrates the output power stages driving the motors, and has an interface for outputting feedback signals representing functioning conditions of the voice-coil motor and of the spindle motor, and for receiving digital control signals of the output power stages. The second chip integrates logic drive and control circuitries of the power stages and an interface for receiving the feedback signals output by the first chip, and for transmitting to the first chip the digital control signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.