| 摘要 |
PROBLEM TO BE SOLVED: To provide a power reception device capable of stopping supply of electric power from a feeding apparatus while suppressing the lowering of a Q value.SOLUTION: The power reception device includes: a first antenna in which coupling by resonance is formed between antennas owned by a feeding apparatus; a second antenna in which coupling by electromagnetic induction is formed between the first antenna and the second antenna; a plurality of switches; a rectification circuit which performs a first operation for rectifying and outputting a voltage given from the second antenna or a second operation for shorting a pair of feeding points of an antenna element owned by the second antenna, by turning on or off the plurality of switches; a load to which a voltage output from the rectification circuit is given; and a control circuit which generates a signal for selecting on or off operations of the plurality of switches in the first operation and the second operation of the rectification circuit. |
