| 摘要 |
<p>PURPOSE: A contactless power transmitting device is provided to maximize power transmission efficiency by controlling the distance between a first resonance coil and a first coil and the distance between a second coil and a second resonance coil. CONSTITUTION: A resonance system(19) comprises a first coil(12), a first resonance coil(13), a second resonance coil(14), a second coil(15), and a load(16). The first coil is connected to an AC power source(11). The load is connected to the second coil. The first resonance coil is spaced apart from the first coil in an axis direction as much as a first distance. The second coil is spaced apart from the second resonance coil in an axis direction as much as a second distance. At least one between the first and the second distance is controlled according to the impedance of a load so that power transmission efficiency maintains a proper value.</p> |
