| 摘要 |
PROBLEM TO BE SOLVED: To provide a charging system eliminating a constant-voltage circuit at a power-receiving apparatus (secondary-side apparatus), reducing constitutional components of the power-receiving apparatus, and lowering power loss. SOLUTION: The charging system comprises a power transmission apparatus 5, a transformer 6, a power-receiving apparatus 7, and a charging controller 8. The charging controller 8 monitors a progress in a charging operation in charging a secondary battery 9; and controls to change an oscillating frequency of the oscillating circuit 51 of the power transmission apparatus 5, so as to optimize an electric energy to be supplied to the secondary battery 9 in accordance with the progress in the charging operation. COPYRIGHT: (C)2008,JPO&INPIT |
