| 摘要 |
PURPOSE: An energy transfer apparatus and a method thereof are provided to maintain energy transmission efficiency by detecting a change of a resonance frequency. CONSTITUTION: A transmission coil(21) comprises a coil which has self inductance. The transmission coil generates magnetic fields using a power source created from a power supply unit(10). The transmission coil transmits the magnetic fields to a transmission resonance coil(22) which has mutual inductance. The magnetic fields amplified from the resonance coil propagate in space. A receiver which has mutual inductance receives the magnetic fields. An energy consumption apparatus which has resistance receives the magnetic fields. An energy transmission device measures a phase difference between voltage and current of a transmission unit. |
