| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve power transmission efficiency in a non-contact power supply device. <P>SOLUTION: The non-contact power supply device includes: a power transmitter 10 provided with a power transmission coil L1 to be energized; a power receiver 50 provided with a power reception coil L2 for receiving power from the power transmitter by magnetic coupling at least; oscillation means 14 for inputting AC power to the power transmission coil; detection means 19 for detecting a distance between the power transmission coil and the power reception coil; and control means 16 for setting an oscillation frequency of the AC power by the oscillation means higher as the distance detected by the detection means is longer, and setting the oscillation frequency lower as the distance is shorter. <P>COPYRIGHT: (C)2012,JPO&INPIT |
