High-bandwidth control of the head-positioning mechanism in a Winchester disk drive
Authors:
- W. MoritzWMW. Moritz
- 1 October 1987
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Control Systems Magazine
- Vol. 7 (5) , 15-19
Abstract
Modern disk drives use fast voice coil actuators for the positioning of magnetic heads onto desired tracks and for keeping them on track against various disturbances by closed-loop control. Problems stem from high-desired control bandwidth (∼ 1 kHz) requiring digital signal processing rates above 10 kHz and from complexity due to structural mechanics effects.Keywords
This publication has 4 references indexed in Scilit:
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- Design of a large capacity disk drive with two actuatorsIEEE Transactions on Magnetics, 1983