2020
DOI: 10.1002/tee.23112
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AFC with gain adjustment in control system in HDDs for compensation of speaker‐induced vibration

Abstract: In recent years, hard disk drives (HDDs) have been primarily used in data servers. At the data servers, the head positioning accuracy of control systems is influenced by various external vibrations. The deterioration of the positioning accuracy causes degradation of the digital data transfer rate in the data server. To compensate for the external vibrations in the head positioning systems of HDDs, in this research, the authors developed an adaptive feedforward control (AFC) with a gain learning function. The p… Show more

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