| 摘要 |
This non-contact power supply apparatus has a power transmission circuit, a primary resonant circuit, a secondary resonant circuit, a rectifying circuit, and a secondary battery. The primary resonant circuit includes a primary coil, and is electrically connected to the power transmission circuit. The secondary resonant circuit includes a secondary coil that receives power in a non-contact manner when facing the primary coil. The rectifying circuit is electrically connected to the secondary resonant circuit. The secondary battery is electrically connected to the rectifying circuit. When the primary coil and the secondary coil face each other, the secondary resonant circuit has an output impedance (Zout). Furthermore, the secondary battery has a secondary battery impedance (ZL). The output impedance (Zout) is previously set such that the impedance ratio (ZL/Zout) is substantially equal to a voltage increase ratio (Du) or a voltage reduction ratio (Dd) of the rectifying circuit. |
