US 7,321,209 B2 | ||
Power buffering for rotating media storage devices | ||
William J. Westerinen, Issaquah, Wash. (US); and Stephen R. Drake, Seattle, Wash. (US) | ||
Assigned to Microsoft Corporation, Redmond, Wash. (US) | ||
Filed on Mar. 23, 2005, as Appl. No. 11/88,617. | ||
Prior Publication US 2006/0214612 A1, Sep. 28, 2006 | ||
Int. Cl. H02P 1/00 (2006.01) |
U.S. Cl. 318—139 [318/439; 318/254; 318/138] | 21 Claims |
1. A system for buffering power associated with a storage device in a computing system, comprising:
a system power supply arranged to supply power to the components of the computing device;
a storage device component containing a storage device motor used to accelerate rotating media in the storage device;
a power storage device arranged to store power for future use; and
a power management circuit comprising a power augmentation circuit arranged to sense when the storage device motor is accelerating
and to supply additional power from the power storage to the storage device motor in response thereto.
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