| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost noncontact charging system capable of authenticating that a combination of a power transmission side and a power reception side is normal, and efficiently transmitting power from the power transmission side to the power reception side. SOLUTION: A charging apparatus 1 includes a power transmission planar coil L1 for transmitting charging high-frequency power, and a charged apparatus 2 includes a power reception planar coil which is magnetically coupled with the power transmission coil L1 and receives the charging high-frequency power. The charging apparatus 1 includes a planar coil L3 for authentication of primary side, which transmits high-frequency power for authenticating the charged apparatus and receives a high-frequency signal for authenticating the charged apparatus, and the charged apparatus 2 includes a planar coil L4 for authenticating a secondary side, which is magnetically coupled to the coil L3, receives the high-frequency power for authentication and outputs a high-frequency signal for authentication generated from the high-frequency power for authentication to the coil L3. The coils for authentication are each arranged so as to oppose a plane different from a plane facing a gap G, out of both surfaces of the power transmission coil L1 or the power reception coil L2. COPYRIGHT: (C)2011,JPO&INPIT
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