| 摘要 |
<p>A mobile terminal device (100) performs near field communications with a R/W device (200), and receives power from a power transmission device (300). The mobile terminal device (100) comprises: a coil antenna (101); an IC circuit (120) for RFID, that performs near field communications externally via the coil antenna (101); a charging circuit (110) that receives power received by the coil antenna (101) that is capacitively coupled to a passive electrode (302); and switches (S1, S2) that switch between a state of near field communications via the coil antenna (101) and a state of power reception via the coil antenna (101). Provided are a power reception device, the power transmission device, and a wireless power transmission system that, as a result, can achieve wireless power transmission without hindering compactness, by having two functions in one member.</p> |
