Hard disk driving circuit and method of driving spindle motor
US8144416B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2010 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Apr 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2054
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A hard disk driving circuit for reducing a maximum amount of current for driving a spindle motor, and a method of driving the spindle motor. The hard disk driving circuit include spindle motor, a spindle motor driving circuit driving the spindle motor, a control circuit controlling the spindle motor driving circuit, and a plurality of functional blocks related to driving a hard disk, and further includes a mask clock signal generator generating a mask clock signal that is inactivated for a period of time when the spindle motor is driven, by using the clock signal. At least one selected from the group consisting of the control circuit, the spindle motor driving circuit, and the plurality of functional blocks operates according to the mask clock signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.