| 摘要 |
A power supply apparatus includes a resonant circuit that comprises a coil (5) wound on a plane and determines a resonant frequency, a driver that drives the resonant circuit, and an inductance changing unit (4) connected to a first end portion (51) of the coil. The inductance changing unit (4) moves the first end portion (51) of the coil and changes inductance of the coil (5). |
