Wireless electromagnetic receiver and wireless power transfer system
First Claim
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1. A wireless electromagnetic receiver comprising:
- a first device configured to be magnetized based on an electromagnetic field, generate mechanical oscillation based on the magnetization, and generate variable tension based on the mechanical oscillation wherein the variable tension generates variable magnetization; and
a second device configured to transfer voltage oscillation as power to a load, wherein the variable magnetization induces the voltage oscillation at an end of the second device,wherein a size of the first device formed by a magnetostrictive material is inversely proportional to a resonance frequency of the first device, andwherein the second device surrounds a portion of the first device.
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Abstract
A system and a device for wirelessly transferring power without a cable are provided. A wireless electromagnetic receiver includes a first device configured to be magnetized based on an electromagnetic field. The wireless electromagnetic receiver further includes a second device configured to transform the magnetization of the first device into a power, the second device being not in contact with the first device.
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Citations
23 Claims
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1. A wireless electromagnetic receiver comprising:
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a first device configured to be magnetized based on an electromagnetic field, generate mechanical oscillation based on the magnetization, and generate variable tension based on the mechanical oscillation wherein the variable tension generates variable magnetization; and a second device configured to transfer voltage oscillation as power to a load, wherein the variable magnetization induces the voltage oscillation at an end of the second device, wherein a size of the first device formed by a magnetostrictive material is inversely proportional to a resonance frequency of the first device, and wherein the second device surrounds a portion of the first device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless power transfer system comprising:
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a transmitter configured to generate a magnetic field to transmit power; and a wireless electromagnetic receiver configured to receive the power from the transmitter, wherein the wireless electromagnetic receiver comprises a first device configured to be magnetized based on the magnetic field, generate mechanical oscillation based on the magnetization, and generate variable tension based on the mechanical oscillation, wherein the variable tension generates variable magnetization, and a second device configured to transfer voltage oscillation as power to a load, wherein the variable magnetization induces the voltage oscillation at an end of the second device, wherein a size of the first device formed by a magnetostrictive material is inversely proportional to a resonance frequency of the first device, and wherein the second device surrounds a portion of the first device. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification