Abstract: A high torque, low inertia direct drive motor comprises a circular outer stator 21 and a circular inner stator 25 and a ring of magnets 23a, 23b, 23c. The ring of magnets 23a, 23b, 23c is held by a support structure 31, said ring of magnets 23a, 23b, 23c positioned between the circular outer stator 21 and the circular inner stator 25. The circular outer stator 21 and ring of magnets and circular inner stator and ring of magnets are separated by an air gap. The circular outer stator 21 and circular inner stator 25 each have a plurality of teeth with coils wound around the teeth. The teeth of the circular inner stator 44a, 44b, 44c are aligned in the same radial direction as the teeth of the circular outer stator 46a, 46b, 46c.

Abstract: A high torque, low inertia direct drive motor comprises a circular outer stator 21 and a circular inner stator 25 and a ring of magnets 23a, 23b, 23c. The ring of magnets 23a, 23b, 23c is held by a support structure 31, said ring of magnets 23a, 23b, 23c positioned between the circular outer stator 21 and the circular inner stator 25. The circular outer stator 21 and ring of magnets and circular inner stator and ring of magnets are separated by an air gap. The circular outer stator 21 and circular inner stator 25 each have a plurality of teeth with coils wound around the teeth. The teeth of the circular inner stator 44a, 44b, 44c are aligned in the same radial direction as the teeth of the circular outer stator 46a, 46b, 46c.

Abstract: An integrated coil assembly (10), a multi-phase linear motor having the integrated coil assembly (10) and a method (100) for forming the integrated coil assembly (10) are described. The integrated coil assembly (10) has multi-phase coils with each multi-phase coil (20) having a number of coil loops based upon the number of electrical phases of current required by the multi-phase linear motor. The coil loops of different multi-phase coils are interweaved at two opposing portions (11,12) and are substantially parallel at two other opposing portions (13,14). In the method (100), different wire dispensers wind coil loops for different electrical phase for each multi-phase coil (20). However, the same wire dispenser winds coil loops that are for the same electrical phase for different multi-phase coils (20). The coil loops for each multi-phase coil (20) are wound before the coil loops of another multi-phase coil (20) are wound.

Abstract: An integrated coil assembly (10), a multi-phase linear motor having the integrated coil assembly (10) and a method (100) for forming the integrated coil assembly (10) are described. The integrated coil assembly (10) has multi-phase coils with each multi-phase coil (20) having a number of coil loops based upon the number of electrical phases of current required by the multi-phase linear motor. The coil loops of different multi-phase coils are interweaved at two opposing portions (11,12) and are substantially parallel at two other opposing portions (13,14). In the method (100), different wire dispensers wind coil loops for different electrical phase for each multi-phase coil (20). However, the same wire dispenser winds coil loops that are for the same electrical phase for different multi-phase coils (20). The coil loops for each multi-phase coil (20) are wound before the coil loops of another multi-phase coil (20) are wound.