Direct current motor with independently driven and switchable stators

A brushless direct current motor comprising:

• a stator positioned for relative rotation with a rotor, wherein the stator includes at least a first multiphase windings and a second multiphase windings;
• and
• a first power electronics for directing energy to the first multiphase windings and a second power electronics for directing energy to the second multiphase windings;
• a commutation electronics for determining electrical position of the rotor relative to the first multiphase windings and the second multiphase windings, and for synchronizing current pulses directed to a sequentially selected phase of the first multiphase windings and the second multiphase windings, to generate a rotating magnetic field that communicates with the rotor;
• and
• a controller for setting the connection of the first power electronics in series or in parallel with the second power electronics.

A method for a direct current motor comprising:

• directing energy to a first stator with a first power electronics, and directing energy to a second stator with a second power electronics, wherein the first stator and the second stator are positioned for relative rotation with a rotor;
• employing a commutation electronics to determine electrical position of the rotor relative to the first stator and the second stator, and synchronize current pulses directed to a sequentially selected phase of the first stator and the second stator, to generate a rotating magnetic field that communicates with the rotor;
• and
• connecting the first power electronics and the second power electronics in either series or in parallel to meet torque and speed requirements of the motor.