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Loop control of active damping for HDD

IP.com Disclosure Number: IPCOM000014346D
Original Publication Date: 2000-Jan-01
Included in the Prior Art Database: 2003-Jun-19

Publishing Venue

IBM

Abstract

1. Idea of disclosure Disclosed is a new reliable head load/unload servo control method for HDDs with Active Damping/Control using the active damping loop gain control. Active damping/control has been used to eliminate gain of the major mode (butterfly mode), that limits servo bandwidth, by actively damping and