Precise Velocity Control of a Hard Disk Drive

The ramp technology was integrated in the Hard Disk Drive a couple of years ago, this technology allows a safer parking position for the heads, but also allow the heads to fly closer from the media, increasing the data density. The Load and Unload operations need a precise velocity control of the Voice Coil Motor (VCM) to avoid permanent damage of the heads and the media. This velocity control has, of course, to be achieved without sensors.


Advisor(s):
Germano, P.
Perriard, Y.
Year:
2007
Laboratories:


Note: The status of this file is: Involved Laboratories Only


 Record created 2009-04-23, last modified 2018-03-17

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