Performance of a single-phase DC brushless motor utilizing the ferromagnetic base material

Chung Ping Liu, Tsung Kun Lin, Yeong Hwa Chang, Shih Hsien Hu, Kun Ton Wu, Li Te Kuo, Hsiao Chih Huang, Tai Fa Ying, Der-Ray Huang

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


A sixth-part model of a single-phase DC brushless motor is used to calculate the cogging torque, the torque constant kt and the coefficient of back emf ke of the motor. The phenomenon, where the cogging torque of the motor increases when the base board is changed to a ferromagnetic material, is observed from the simulated data and the experimental results. The decrease in kt, ke and the efficiency of the motor with the ferromagnetic baseboard is also observed. The results show that nonmagnetic materials are more suitable than ferromagnetic materials for constructing the baseboard of a single-phase DC brushless motor.

Original languageEnglish
Pages (from-to)176-179
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Issue number1-3
StatePublished - 1 Jan 2000
EventProceedings of the 1999 International Symposium on Advanced Magnetic Technologies (ISAMT'99) - Taipei, Taiwan
Duration: 24 May 199925 May 1999


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