Abstract: A power management system includes a voltage source configured to provide at least a first voltage and a second voltage, and a controller configured to couple the first voltage to a first voltage supply terminal or couple the second voltage to a second voltage supply terminal in response to a comparison of one or more first variables associated with the first voltage supply terminal to one or more second variables associated with the second voltage supply terminal.

Abstract: A fault detection system includes a fault indicator and power monitors coupled to the fault indicator. The fault indicator is configured to indicate a fault for a first one of the power monitors which detects a corresponding voltage is not between a corresponding maximum value and a corresponding minimum value.

Abstract: An electric motor structure and method of assembling the same wherein such structure includes a laminated stator core with a rotor body disposed therein with a rotor shaft extending therefrom to be supported by bearing support end shield means having bearing supports tightly fastened to said stator core in a manner that resistance to bending forces is less in the laminated stator core than the resistances to bending forces of the bearing support end shield means to enhance stability and squareness of the bearing support end shield means and bearing supports of the motor assembly.