For pt.I see ibid., vol.29, no.1, p.124-135 (1993). An analytical technique for predicting the open-circuit magnetic field distribution in the airgap/magnet region of a brushless permanent-magnet DC ...

This paper deals with the effects of manufacturing imperfections on the circulating current characteristics of an ironless brushless dc (BLDC) motor through a two-dimensional finite-element method ...