Low cogging torque and high efficient 3-phase spindle motors by reshaping magnetic circuit profiles

被引:2
作者
Chiu, KC [1 ]
Huang, DR
Shieh, HPD
机构
[1] Natl Chiao Tung Univ, Inst Electroopt Engn, Hsinchu 300, Taiwan
[2] ITRI, OES, Hsinchu 310, Taiwan
关键词
Back-emf; cogging torque; DVD drives; FEA; finite element analysis; rise time; runout; spindle motor;
D O I
10.1109/20.951318
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The dynamic characteristics of a 3-phase spindle motor with 12-poles and 9-slots can be improved by reshaping the magnetic circuit profiles. The stator cores were designed with different ratios of x/y where x is the gap angle between 2-slots and y is the expanded angle of a slot. Experiment and finite element analyses (FEA) results show that x/y ratio of 1/2.5 is an optimal design in achieving dynamic performance for DVD drives applications.
引用
收藏
页码:2824 / 2826
页数:3
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