Patent ID: 7362597

Claim:
An AC voltage generating apparatus, comprising: first and second three-phase coils ( 11 , 12 ); a first current supplying circuit allowing a first AC current having a prescribed frequency to pass through said first three-phase coil; a second current supplying circuit allowing a second AC current having said prescribed frequency and a phase being inverted relative to a phase of said first AC current to pass through said second three-phase coil; and a voltage converter ( 50 ) connected between a first neutral point (M 1 ) of said first three-phase coil ( 11 ) and a second neutral point (M 2 ) of said second three-phase coil ( 12 ) for converting an AC voltage generated between said first neutral point (M 1 ) and said second neutral point (M 2 ) to output an AC voltage having said prescribed frequency.