Power Feeding Device and Non-Contact Power Transmission Device

Power feeding device and non-contact power transmission device which are capable of maintaining high power transmission efficiency even if any displacement occurs in relative positions of each power feeding coil among plurality of power feeding coils and power receiving coil are provided. Power feeding device includes power feeding coil unit which includes magnetic body unit in which at least three magnetic bodies are arranged to be spaced apart in first direction, and plurality of power feeding coils each formed of wire wound around at least two magnetic bodies in magnetic body unit, and plurality of power feeding coils, which are located adjacently in the first direction, are configured such that wires of the plurality of power feeding coils are wound in common around one or more magnetic bodies, number of which is less than number of magnetic bodies around which wires of the respective power feeding coils and are wound.