WIRELESS ENERGY TRANSFER SYSTEMS
First Claim
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1. A wireless power transfer system comprising:
- a source unit with at least one source planar magnetic resonator coupled to a power generator, and arranged such that the dipole moment of the said source planar magnetic resonator is oriented substantially in a plane of the source planar magnetic resonator;
at least one device unit with at least one device planar magnetic resonator arranged such that the dipole moment of the said device planar magnetic resonator is oriented substantially in a plane of the device planar magnetic resonator; and
an active area around the source unit such that when the said device unit is placed in the active area alternating magnetic fields generated by at least one of the source planar magnetic resonators induce a current in at least one of the said device planar magnetic resonators of the said device unit,wherein the said active area of the power transfer system is at least two times the area enclosed by the perimeter of the said source planar magnetic resonator.
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Abstract
Described herein are improved capabilities for a source resonator having a Q-factor Q1>100 and a characteristic size x1 coupled to an energy source, and a second resonator having a Q-factor Q2>100 and a characteristic size x2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.
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Citations
46 Claims
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1. A wireless power transfer system comprising:
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a source unit with at least one source planar magnetic resonator coupled to a power generator, and arranged such that the dipole moment of the said source planar magnetic resonator is oriented substantially in a plane of the source planar magnetic resonator; at least one device unit with at least one device planar magnetic resonator arranged such that the dipole moment of the said device planar magnetic resonator is oriented substantially in a plane of the device planar magnetic resonator; and an active area around the source unit such that when the said device unit is placed in the active area alternating magnetic fields generated by at least one of the source planar magnetic resonators induce a current in at least one of the said device planar magnetic resonators of the said device unit, wherein the said active area of the power transfer system is at least two times the area enclosed by the perimeter of the said source planar magnetic resonator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A wireless power transfer method comprising the steps of:
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providing a source unit with at least one source planar magnetic resonator coupled to a power generator and arranged such that the dipole moment of the said planar source magnetic resonator is oriented substantially in a plane of the source planar magnetic resonator, providing at least one device unit with at least one device planar magnetic resonator and arranged such that the dipole moment of the said device planar magnetic resonator is oriented substantially in the plane of the device planar magnetic resonator, and providing power to at least one of the said source planar magnetic resonators through the power generator to generate an active area of alternating electromagnetic field around the source unit, wherein the said active area is at least two times the area enclosed by the perimeter of the said source planar magnetic resonator. - View Dependent Claims (42, 43, 44, 45, 46)
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Specification