| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power supply apparatus for vehicle, capable of maintaining high power transmission efficiency. <P>SOLUTION: The power supply apparatus for vehicle forms a magnetic field vibrating at a resonance frequency thereof, based on power supply from a system power source 10 to a power transmission coil 12. By performing magnetic resonance with a power reception coil 21 in which the power transmission coil 12 is installed on a vehicle 20, the electric power supplied from the system power source 10 to the power transmission coil 12 is charged into an on-vehicle battery 23 through the power reception coil 21. Using a first and a second CCD cameras 14, 15, a distance between the power transmission coil 12 and the power reception coil 21 is measured and the resonance frequency of the power transmission coil 12 is adjusted through a frequency adjustment part 30, based on the measured distance between the respective coils 12, 21. <P>COPYRIGHT: (C)2012,JPO&INPIT |
