NON-CONTACT POWER TRANSMISSION DEVICE, NON-CONTACT POWER RECEIVING DEVICE, AND NON-CONTACT POWER TRANSFER SYSTEM

摘要

PROBLEM TO BE SOLVED: To carry out non-contact data communication at the same time as non-contact power transfer without increase in the circuit scale or cost of the device in a non-contact power transfer device that transfers electric power in a non-contact manner using a magnetic resonance phenomenon so as to inspect whether an amount of transmitted power and an amount of received power have a normal value or authenticate whether power receiving equipment is entitled to receive power or for any other purpose. SOLUTION: A transmission coil and a reception coil used in non-contact power transfer using a magnetic resonance phenomenon at a predetermined magnetic resonance frequency are configured as a helical antenna. A signal equivalent to a constant multiple of a signal at the magnetic resonance frequency is used as a carrier wave. Thus non-contact power transfer and non-contact data communication can be simultaneously carried out with the same coil. COPYRIGHT: (C)2010,JPO&INPIT