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Hard Disk Drive Spindle Motor Excitation Function

IP.com Disclosure Number: IPCOM000035890D
Original Publication Date: 1989-Aug-01
Included in the Prior Art Database: 2005-Jan-28

Publishing Venue

IBM

Related People

Authors:
Yamamoto, S [+details]

Abstract

Disclosed is a method which eliminates head-disk interface "stucks" in a hard disk drive. The method comprises the step of switching on/off a spindle motor for driving disks at the natural frequency of the system which consists of a head suspension, and heads and disks which are stuck. By this switching, a resonant vibration occurs in the system and the extra force acts to unstick the head-disk interfaces. (Image Omitted)