Efficient near-field wireless energy transfer using adiabatic system variations
First Claim
1. A method comprising:
- transferring energy from a first resonant object to a second resonant object using a third resonant object to mediate the energy transfer, wherein the third resonant object is capable of resonantly coupling with (i) the first resonant object, (ii) the second resonant object, or (iii) both, more strongly than the first resonant object is capable of resonantly coupling with the second resonant object; and
maintaining a reduced level of energy accumulation in the third resonant object by varying over time a coupling rate between the third resonant object and (i) the first resonant object, (ii) the second resonant object, or (iii) both, based on a loss rate of (i) the first resonant object, (ii) the second resonant object, or (iii) both;
wherein the reduced level of energy accumulation is reduced relative to energy accumulation that would occur in the third resonant object without the varying of the coupling rate over time.
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Accused Products
Abstract
Disclosed is a method for transferring energy wirelessly including transferring energy wirelessly from a first resonator structure to an intermediate resonator structure, wherein the coupling rate between the first resonator structure and the intermediate resonator structure is κ1B, transferring energy wirelessly from the intermediate resonator structure to a second resonator structure, wherein the coupling rate between the intermediate resonator structure and the second resonator structure is κB2, and during the wireless energy transfers, adjusting at least one of the coupling rates κ1B and κB2 to reduce energy accumulation in the intermediate resonator structure and improve wireless energy transfer from the first resonator structure to the second resonator structure through the intermediate resonator structure.
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Citations
28 Claims
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1. A method comprising:
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transferring energy from a first resonant object to a second resonant object using a third resonant object to mediate the energy transfer, wherein the third resonant object is capable of resonantly coupling with (i) the first resonant object, (ii) the second resonant object, or (iii) both, more strongly than the first resonant object is capable of resonantly coupling with the second resonant object; and maintaining a reduced level of energy accumulation in the third resonant object by varying over time a coupling rate between the third resonant object and (i) the first resonant object, (ii) the second resonant object, or (iii) both, based on a loss rate of (i) the first resonant object, (ii) the second resonant object, or (iii) both; wherein the reduced level of energy accumulation is reduced relative to energy accumulation that would occur in the third resonant object without the varying of the coupling rate over time. - View Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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transferring energy from a first resonant object to a second resonant object using a third resonant object to mediate the energy transfer, wherein the third resonant object is capable of resonantly coupling with (i) the first resonant object, (ii) the second resonant object, or (iii) both, more strongly than the first resonant object is capable of resonantly coupling with the second resonant object; and maintaining a reduced level of energy accumulation in the third resonant object by varying over time a coupling rate between the third resonant object and (i) the first resonant object, (ii) the second resonant object, or (iii) both, based on a loss rate of (i) the first resonant object, (ii) the second resonant object, or (iii) both; wherein; transferring the energy comprises wirelessly transferring energy from the first resonant object to the second resonant object using the third resonant object to mediate the wireless energy transfer; and maintaining the reduced level of energy accumulation in the third resonant object comprises varying both (i) a coupling rate between the first resonant object and the third resonant object and (ii) a coupling rate between the third resonant object and the second resonant object, over time in accordance with an adiabatic time evolution of an eigenstate for the three resonant objects. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13)
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14. A system comprising:
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a first resonant object to provide energy; a second resonant object to receive energy; a third resonant object to mediate energy transfer between the first resonant object and the second resonant object, wherein the third resonant object is capable of resonantly coupling with (i) the first resonant object, (ii) the second resonant object, or (iii) both, more strongly than the first resonant object is capable of resonantly coupling with the second resonant object; and a control mechanism configured and arranged to maintain a reduced level of energy accumulation in the third resonant object by varying over time a coupling rate between the third resonant object and (i) the first resonant object, (ii) the second resonant object, or (iii) both, based on a loss rate of (i) the first resonant object, (ii) the second resonant object, or (iii) both; wherein the reduced level of energy accumulation is reduced relative to energy accumulation that would occur in the third resonant object without the varying of the coupling rate over time. - View Dependent Claims (15, 16, 17, 18)
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19. A system comprising:
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a first resonant object to provide energy; a second resonant object to receive energy; a third resonant object to mediate energy transfer between the first resonant object and the second resonant object, wherein the third resonant object is capable of resonantly coupling with (i) the first resonant object, (ii) the second resonant object, or (iii) both, more strongly than the first resonant object is capable of resonantly coupling with the second resonant object; and a control mechanism configured and arranged to improve energy transfer by varying over time a coupling rate between the third resonant object and (i) the first resonant object, (ii) the second resonant object, or (iii) both, based on a loss rate of (i) the first resonant object, (ii) the second resonant object, or (iii) both; wherein the first resonant object is a first wireless resonator, the second resonant object is a second wireless resonator, the third resonant object is a third wireless resonator, and the control mechanism is configured and arranged to vary both (i) a coupling rate between the first wireless resonator and the third wireless resonator and (ii) a coupling rate between the third wireless resonator and the second wireless resonator, over time in accordance with an adiabatic time evolution of an eigenstate for the three wireless resonators. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26)
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27. An apparatus comprising:
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an intermediary wireless resonator to mediate energy transfer between a source wireless resonator and a destination wireless resonator, wherein the intermediary wireless resonator is capable of resonantly coupling with (i) the source wireless resonator, (ii) the destination wireless resonator, or (iii) both, more strongly than the source wireless resonator is capable of resonantly coupling with the destination wireless resonator; and a control mechanism configured and arranged to maintain a reduced level of energy accumulation in the intermediary wireless resonator by varying over time a coupling rate between the source wireless resonator and the intermediary wireless resonator and between the intermediary wireless resonator and the destination wireless resonator; wherein the reduced level of energy accumulation is reduced relative to energy accumulation that would occur in the intermediary wireless resonator without the varying of the coupling rate over time. - View Dependent Claims (28)
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Specification