| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and system for power transmission which can conveniently detect a device to be power-supplied in transmitting power by use of a magnetic field. <P>SOLUTION: A device for power transmission includes a power transmission section and a detection section. The power transmission section is configured to transmit an electric power by use of a magnetic field. The detection section is configured to detect whether a device to be power-supplied by the power transmission section exists in the vicinity, on the basis of a change in impedance in the vicinity of the power transmission section. <P>COPYRIGHT: (C)2013,JPO&INPIT |
