Micro-motor with low cogging torque

A micro-motor, comprising:

• a stator, including:
• a first magnetically conductive assembly including a
• plurality of magnetically conductive sheets stacked together, each of which has a plurality of a symmetrical salient teeth, wherein at least one of the magnetically conductive sheets is disposed reversely relative to the other magnetically conductive sheets;
• a bobbin disposed on the first magnetically conductive assembly and having at least one coil;
• a second magnetically conductive assembly disposed on the bobbin and including a plurality of the magnetically conductive sheets stacked together, each of which has a plurality of asymmetrical salient teeth, wherein at least one of the magnetically conductive sheets is disposed reversely relative to the other magnetically conductive sheets;
• and
• a rotor coupled to the stator.

A motor comprising:

• a stator including:
• a plurality of asymmetrically magnetically conductive sheets stacked together, wherein at least one of the magnetically conductive sheets is disposed reversely relative to other magnetically conductive sheets:
• and
• a coil coupled to the plurality of magnetically conductive sheets;
• and
• a rotor coupled to the stator.