DocumentCode
897461
Title
A servo method for a large-capacity floppy disk drive with downward compatibility
Author
Sakai, Y. ; Takada, Y. ; Yamada, T. ; Sugaya, T.
Author_Institution
Toshiba Res. & Dev. Center, Kawasaki, Japan
Volume
25
Issue
5
fYear
1989
fDate
9/1/1989 12:00:00 AM
Firstpage
3375
Lastpage
3377
Abstract
A novel servo method, in which a linear voice coil motor (LVCM) with a simple optical scale is controlled by a μCPU, has been developed. It has a downward read-compatible mode with 135 tracks/in (TPI) and a large-capacity 16-MByte mode with 542 TPI, and it achieves an average seeking time of 25 ms. The drive is expected to be used in such applications as peripheral memories and hard-disk-drive back-ups
Keywords
floppy discs; 16 MByte; 25 ms; LVCM; average seeking time; downward read-compatible mode; hard-disk-drive back-ups; large-capacity floppy disk drive; linear voice coil motor; optical scale; peripheral memories; servo method; Coils; Control systems; Drives; Floppy disks; High speed optical techniques; Optical control; Optical sensors; Servomechanisms; Servomotors; Velocity control;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.42306
Filename
42306
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