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

Authors
Chiu, KC Huang, DR Shieh, HPD
Citation
Kc. Chiu et al., Low cogging torque and high efficient 3-phase spindle motors by reshaping magnetic circuit profiles, IEEE MAGNET, 37(4), 2001, pp. 2824-2826
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
37
Issue
4
Year of publication
2001
Part
1
Pages
2824 - 2826
Database
ISI
SICI code
0018-9464(200107)37:4<2824:LCTAHE>2.0.ZU;2-N
Abstract
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 stato r 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 fini te element analyses (FEA) results show that x/y ratio of 1/2.5 is an optima l design in achieving dynamic performance for DVD drives applications.