Micro-magnetic suspension motor design for miniature optical drive

Chien Chang Wang, Yeong Der Yao, Chien Sheng Liu, Lung Yu Cheng

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The main purpose of this study is to develop a low vibration micromotor applied in a miniature optical drive. To minimize the micromotor vibration, passive magnetic suspension technology has been used. The magnetic forces between the permanent magnets are estimated using the finite element method; the stable zone of operation of the motor developed was determined. A new micromotor with 62% of the radial vibration of the conventional micro-ball-bearing motor has been successfully developed. In addition, the new motor demonstrates lower friction torque loss.

Original languageEnglish
Pages (from-to)5801-5803
Number of pages3
JournalJapanese Journal of Applied Physics
Issue number7
Publication statusPublished - 2006 Jul 7

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Physics and Astronomy


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