Mechanical Filter on Actuator for System Stability of 9.5 mm Drive

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Published 29 July 2004 Copyright (c) 2004 The Japan Society of Applied Physics
, , Citation Byung Youn Song et al 2004 Jpn. J. Appl. Phys. 43 4786 DOI 10.1143/JJAP.43.4786

1347-4065/43/7S/4786

Abstract

We propose a redesign method for modal parameters to depress the second resonance peak of an ultraslim optical pickup actuator. With the addition of the countermode near the second resonance frequency, we can achieve the gain margin, which is sufficient to meet the system requirement. It would alleviate the burden of the additional filter for a high-speed drive.

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10.1143/JJAP.43.4786