Patent ID: 6891294
Filing Date: 2005-05-10
Classification: B60K,H02K

Abstract:
1. An electric motor comprising: a support member; a moving member; a plurality of electromagnet groups, each group comprising at least one electromagnet set, wherein each electromagnet set comprises a plurality of electromagnet units, wherein each of the electromagnet units comprises at least one coil around a core having two poles, wherein each coil has first and second terminals, wherein the electromagnet units are fixed on the support member and connectable to an energy source, and wherein adjacent electromagnet units are spaced equal distances apart on the support member; a plurality of permanent magnets, wherein the permanent magnets are supported on the moving member so that during operation of the motor at least some are positioned a magnetically responsive distance from the plurality of electromagnet units on the support member, wherein each of the permanent magnets has a north pole and a south pole, wherein each of the permanent magnets is alternatingly oriented relative to adjacent permanent magnets so that adjacent poles of adjacent permanent magnets have alternating polarity, and wherein adjacent permanent magnets are spaced equal distances apart on the moving member; and a drive circuit comprising: