| 摘要 |
PROBLEM TO BE SOLVED: To provide a convenient charging system which has universal performance and versatility, and is user-friendly. SOLUTION: The power supply device includes a movable primary coil, and an electric appliance includes a fixed secondary coil. When the electronic appliance is equipped on the power supply device, the power supply device drives the primary coil on DC, and also the electronic appliance drives the secondary coil on DC to generate an attraction force in the coils each other. By doing this, the movable primary coil can obtain a proper position so as to be attracted by the secondary coil. After this, power is transmitted from the primary coil to the secondary coil by AC drive. COPYRIGHT: (C)2011,JPO&INPIT |
