| http://www.w3.org/ns/prov#value | - FIG. 7 is a graph schematically illustrating waveforms of fundamental wave components of U-phase stator direc of respective first and second stator coils illustrated in FIG. 6 and waveforms of direct currents supplied from a power supply source in which third harmonic wave components are contained according to the first modification of the embodiment; and
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