POWER-FEED DEVICE

Disclosed is a vehicle charging system that includes a plurality of primary self-resonance coils (20, 22) provided on a road (10) side and a plurality of secondary self-resonance coils (24, 26) provided on a vehicle (14). Power is fed from the primary self-resonance coils (20, 22) to the secondary self-resonance coils (24, 26). Each primary self-resonance coil (20, 22) has a different resonance frequency from the adjacent primary self-resonance coils (20, 22). Each secondary self-resonance coil (24, 26) hasadifferent resonance frequency from the adjacent secondary self-resonance coils (24, 26).