CONTROLLING WIRELESS POWER TRANSFER SYSTEMS
First Claim
1. A wireless energy transfer system comprising:
- an energy transmitter comprising a transmitter-impedance matching network (IMN), the transmitter configured to perform operations comprising;
performing a first comparison between a characteristic of a power of the transmitter and a target power; and
adjusting, based on the first comparison, a reactance of the transmitter-IMN to adjust the power of the transmitter; and
an energy receiver comprising a receiver-IMN, the receiver configured to perform operations comprising;
determining an efficiency of the wireless energy transfer system at a second time based on power data from the transmitter;
performing a second comparison between the efficiency at the second time and an efficiency of the wireless energy transfer system at a first time, the first time being prior to the second time; and
adjusting, based on the second comparison, a reactance of the receiver-IMN.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods, systems, and devices for operating wireless power transfer systems. One aspect features a wireless energy transfer system that includes a transmitter, and a receiver. The transmitter has a transmitter-IMN and is configured to perform operations including performing a first comparison between a characteristic of a power of the transmitter and a target power. Adjusting, based on the first comparison, a reactance of the transmitter-IMN to adjust the power of the transmitter. The receiver has a receiver-IMN and is configured to perform operations including determining an efficiency of the wireless energy transfer system at a second time based on power data from the transmitter. Performing a second comparison between the efficiency at the second time and an efficiency of the wireless energy transfer system at a first time, the first time being prior to the second time. Adjusting, based on the second comparison, a reactance of the receiver-IMN.
28 Citations
20 Claims
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1. A wireless energy transfer system comprising:
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an energy transmitter comprising a transmitter-impedance matching network (IMN), the transmitter configured to perform operations comprising; performing a first comparison between a characteristic of a power of the transmitter and a target power; and adjusting, based on the first comparison, a reactance of the transmitter-IMN to adjust the power of the transmitter; and an energy receiver comprising a receiver-IMN, the receiver configured to perform operations comprising; determining an efficiency of the wireless energy transfer system at a second time based on power data from the transmitter; performing a second comparison between the efficiency at the second time and an efficiency of the wireless energy transfer system at a first time, the first time being prior to the second time; and adjusting, based on the second comparison, a reactance of the receiver-IMN. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A wireless energy transmitter comprising a transmitter-impedance matching network (IMN), the transmitter configured to perform operations comprising:
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performing a first comparison between a characteristic of a power of the transmitter and a target power; adjusting, based on the first comparison, a reactance of the transmitter-IMN to adjust the power of the transmitter; and transmitting power data that indicates the power of the transmitter to a wireless energy receiver.
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20. A wireless energy receiver comprising a receiver-impedance matching network (IMN), the receiver configured to perform operations comprising:
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determining an efficiency of a wireless energy transfer system at a second time based on power data from a wireless energy transmitter; performing a second comparison between the efficiency at the second time and an efficiency of the wireless energy transfer system at a first time, the first time being prior to the second time; and adjusting, based on the second comparison, a reactance of the receiver-IMN.
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Specification