Please use this identifier to cite or link to this item: https://doi.org/10.1109/TMAG.2004.832275
Title: A nonlinear control scheme for fast settling in hard disk drives
Authors: Li, Y.
Guo, G. 
Wang, Y.
Keywords: Bias
Hard disk drive (HDD)
Nonlinear control
Settling time
Issue Date: Jul-2004
Source: Li, Y., Guo, G., Wang, Y. (2004-07). A nonlinear control scheme for fast settling in hard disk drives. IEEE Transactions on Magnetics 40 (4 II) : 2086-2088. ScholarBank@NUS Repository. https://doi.org/10.1109/TMAG.2004.832275
Abstract: Conventional integral compensation to deal with unknown bias usually leads to long settling process in hard disk drives. This paper proposes a nonlinear proportional integral derivative control scheme to shorten the settling time by reducing the overshoot caused by the integrator, without degradation of other performance specifications. Experiment results show that it is robust against different bias sizes and step sizes. Furthermore, the single-track seek time can scale down well with the track pitch.
Source Title: IEEE Transactions on Magnetics
URI: http://scholarbank.nus.edu.sg/handle/10635/68938
ISSN: 00189464
DOI: 10.1109/TMAG.2004.832275
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