Patent ID: 6603237
Filing Date: 2003-08-05
Classification: H02K,Y10T

Abstract:
A device selected from the group of devices consisting of an electric motor, an electric generator, and a regenerative electric motor, the device comprising:at least one stator arrangement having a plurality of electromagnetic assemblies with each electromagnetic assembly including at least a portion of a magnetic core that is formed from thin film soft magnetic material, the electromagnetic assemblies defining a plurality of stator poles, and at least one rotor arrangement supported for rotation about a given rotational axis at a certain range of normal operating rotational speeds, the rotor arrangement including a plurality of rotor poles for magnetically interacting with the stator poles, the rotor poles being supported for rotation about the rotational axis along a circular path, and a switching arrangement for controlling the electromagnetic assemblies, the switching arrangement being configured such that the switching arrangement is able to cause the stator poles of the electromagnetic assemblies to magnetically interact with the rotor poles of the rotor arrangement within a certain range of frequencies, the number of rotor poles being such that the switching arrangement causes the stator poles of the electromagnetic assemblies to magnetically interact with the rotor poles of the rotor arrangement such that the ratio of the frequency of the device in cycles per second relative to the revolutions per minute of the device is greater than 1 to 4 during the operation of the device.