Device for receiving wireless power
First Claim
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1. A wireless power receiver which wirelessly receives power from a wireless power transmitter, the wireless power receiver comprising:
- a receiving coil configured to wirelessly receive the power from the wireless power transmitter through a magnetic field;
a switch connected in parallel with the receiving coil; and
a first rectifier and a second rectifier configured to rectify power from the receiving coil, wherein the wireless power receiver controls an operation of the switch based on a frequency band of the power transmitted by the wireless power transmitter,wherein the frequency band of the power transmitted by the wireless power transmitter includes a first frequency band and a second frequency band,the first rectifier configured to rectify a power of the first frequency band received from the receiving coil and transfer the rectified power to a load, andthe second rectifier configured to rectify a power of the second frequency band received from the receiving coil and transfer the rectified power to the load.
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Abstract
A wireless power reception device that wirelessly receives power from a wireless power transmission device according to an embodiment of the present invention includes a reception coil receiving power from the wireless power transmission device wirelessly through a magnetic field, and a switch connected to one end and the other end of the reception coil, wherein the wireless power reception device controls the operation of the switch according to the frequency band of the power transmitted by the wireless power transmission device.
21 Citations
19 Claims
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1. A wireless power receiver which wirelessly receives power from a wireless power transmitter, the wireless power receiver comprising:
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a receiving coil configured to wirelessly receive the power from the wireless power transmitter through a magnetic field; a switch connected in parallel with the receiving coil; and a first rectifier and a second rectifier configured to rectify power from the receiving coil, wherein the wireless power receiver controls an operation of the switch based on a frequency band of the power transmitted by the wireless power transmitter, wherein the frequency band of the power transmitted by the wireless power transmitter includes a first frequency band and a second frequency band, the first rectifier configured to rectify a power of the first frequency band received from the receiving coil and transfer the rectified power to a load, and the second rectifier configured to rectify a power of the second frequency band received from the receiving coil and transfer the rectified power to the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification