| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent demagnetization of permanent magnet components inside an electronic device, even if the electronic device on a charging cradle is raised and a magnetic flux gradually disappears. <P>SOLUTION: A device to be supplied with power includes an auxiliary coil as well as a secondary coil. When it is determined that the magnetic flux generated by the secondary coil is being gradually reduced in accordance with an elapse of time, an insufficient amount of the predetermined magnetic flux is obtained concerning the magnetic flux generated in the secondary coil. The auxiliary coil is caused to generate the magnetic flux equivalent to the insufficient amount, thereby driving the auxiliary coil. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
