| 摘要 |
PROBLEM TO BE SOLVED: To implement high speed control of received power.SOLUTION: According to an embodiment, a wireless power transmission apparatus can supply a load circuit with power wirelessly transmitted from a transmitting device. The wireless power transmission apparatus includes: a receiving resonance section including a receiving coil and a capacitor; an impedance conversion section for supplying power from the receiving resonance section to the load circuit through a variable device impedance viewed from the transmitting device; a detection section for detecting power information corresponding to the power supplied to the load circuit; and a control section for determining whether or not to adjust at least any one of a resonance frequency of the receiving resonance section, an output frequency of an AC power supply of the transmitting device, and a resonance frequency of a transmitting resonance section on the basis of a magnitude relationship between first power information available with the device impedance set at a first impedance and second power information available with the device impedance set at a second impedance. |
