Novel two-phase spindle motor for digital video disk applications

Author

Huang, Chien-Chin ; Tsai, Mi-Ching

Author_Institution

Dept. of Mech. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan

Volume

37

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

3825

Lastpage

3830

Abstract

Disk drives require high-precision spindle motors for fast and accurate access of data. This paper presents a new two-phase spindle motor for digital video disks (DVDs) and compact disks (CDs). The brushless spindle motor has a pancake-type construction, which has distinct advantages and costs less to manufacture because of the simplicity of the stator structure and the windings. The constraint between the detent torque and the starting torque in the single-phase pancake-type motor design is resolved by using the two-phase scheme. A prototype of the two-phase spindle motor and drive circuit has been made and tested in commercial DVD and CD-ROM drives. Experimental results show that its performance satisfies the requirements of the optical disk drives

Keywords

CD-ROMs; brushless DC motors; disc drives; stators; torque; video discs; CD-ROM drive; DC brushless motor; DVD drive; compact disk; detent torque; digital video disk; optical disk drive; pancake design; starting torque; stator winding; two-phase spindle motor; Brushless motors; CD recording; Circuit testing; Costs; DVD; Disk drives; Manufacturing; Prototypes; Stator windings; Torque;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.952753

Filename

952753