Title :
The analysis and design of a NdFeB permanent-magnet spindle motor for CD-ROM drive
Author :
Hwang, C.C. ; John, S.B. ; Bor, S.S.
Author_Institution :
Dept. of Electr. Eng., Feng Chia Univ., Taichung, Taiwan
fDate :
12/1/1999 12:00:00 AM
Abstract :
This paper presents a brushless permanent-magnet (PM) DC motor for use as the spindle motor in a CD-ROM drive. The proposed motor is a slotted stator and an outer-rotor which uses a high energy magnet, neodymium-iron-boron (NdFeB) for excitation. The design and optimization of the motor was done with the aid of electromagnetic field analysis based on the finite element method. Computational and experimental results of the motor are included
Keywords :
CD-ROMs; boron alloys; brushless DC motors; disc drives; electromagnetic fields; finite element analysis; iron alloys; machine theory; neodymium alloys; permanent magnet motors; permanent magnets; rotors; stators; CD-ROM drive; NdFeB; NdFeB permanent-magnet spindle motor; brushless PM DC motor; design; electromagnetic field analysis; excitation; finite element method; optimization; outer rotor; slotted stator; Brushless DC motors; Brushless motors; CD-ROMs; DC motors; Design optimization; Electromagnetic analysis; Electromagnetic fields; Magnetic analysis; Permanent magnet motors; Stators;
Journal_Title :
Energy Conversion, IEEE Transactions on
