Non-contact power supply system and power transmission device

A non-contact power supply system includes a power transmission device including a first resonance circuit having a first coil for transmitting electric power; and a power reception device including a second resonance circuit having a second coil for receiving the electric power. The system is confi...

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Bibliographische Detailangaben
Hauptverfasser:	Sato, Junya, Ikefuji, Yoshihiro
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY TRANSMISSION
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Beschreibung
Zusammenfassung:	A non-contact power supply system includes a power transmission device including a first resonance circuit having a first coil for transmitting electric power; and a power reception device including a second resonance circuit having a second coil for receiving the electric power. The system is configured to transmit and receive the electric power by a magnetic field resonance method, and to communicate between the power transmission device and the power reception device. The power transmission device includes a power transmission circuit for supplying an AC voltage to the first resonance circuit; a detection circuit configured to detect an amplitude of a current flowing through the first coil; and a control circuit configured to control the power transmission circuit to perform power transmission control of the electric power.