| 摘要 |
<p>A contactless power transmission device according to the present invention and equipped with a search coil (19) in which a sensor coil is positioned so as to be flat and cover a ground coil (14), wherein the voltage generated by the sensor coil is stored as a reference voltage table when foreign matter is not present near the search coil (19). Furthermore, the contactless power transmission device determines whether or not foreign matter is present near the search coil (19) by comparing the voltage generated by the sensor coil and the reference voltage table.</p> |
