Wireless power transmission apparatus
AssigneeSony Corporation
InventorsHisato Hirasaka, Toshiyuki Hirose, Toshihiko Hirose, Tetsuro Makise, Akira Itou
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Abstract
A wireless power transmission apparatus includes: a transmitter that wirelessly transmits electric power; and a receiver that can receive, in a resonant relation with the transmitter, a transmission signal including the electric power transmitted from the transmitter, wherein the receiver includes a frequency variable unit that can change a reception resonant frequency; a detecting unit that detects reception power; and a control unit that controls the frequency variable unit to perform frequency adjustment such that the reception power detected by the detecting unit is maximized.
Claims15
A wireless power reception apparatus comprising:
- a receiver configured to receive electric power transmitted from a transmitter while changing a reception resonant frequency of the receiver,
- wherein the receiver includes
- a rectifying unit configured to rectify the received electric power to a transmission voltage and feed the transmission voltage to an adjusting circuit;
- and
- a control unit configured to control the adjusting circuit,
- wherein the control unit is configured to adjust the reception resonant frequency to resonant frequency of the transmitted electric power.
Dependencies are inferred from the claim text.