2005
DOI: 10.1143/jjap.44.1262
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Thickness Minimized Magnetic Circuit for Rotary-Type Voice Coil Motor

Abstract: As the demand for small-form-factor disk drives for mobile devices increases, the miniaturization of voice coil motor (VCM) actuators playing important roles in track seeking and track following is an issue. In this study, we have determined that a multisegmented magnet array (MSMA) can reduce the total thickness of the magnetic circuit for a rotary-type VCM without changing the coil and air gap parameters.

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