MAGNETIC POWER TRANSMISSION UTILIZING PHASED TRANSMITTER COIL ARRAYS AND PHASED RECEIVER COIL ARRAYS
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Accused Products
Abstract
An improved wireless transmission system for transferring power over a distance. The system includes a transmitter generating a magnetic field and a receiver for inducing a voltage in response to the magnetic field. In some embodiments, the transmitter can include a plurality of transmitter resonators configured to transmit wireless power to the receiver. The transmitter resonators can be disposed on a flexible substrate adapted to conform to a patient. In one embodiment, the polarities of magnetic flux received by the receiver can be measured and communicated to the transmitter, which can adjust polarities of the transmitter resonators to optimize power transfer. Methods of use are also provided.
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Citations
36 Claims
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1-16. -16. (canceled)
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17. A wireless power transmitter, comprising:
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coil circuitry including at least two transmit resonators; and driver circuitry including a voltage source, the driver circuitry configured to excite the coil circuitry to transmit wireless power from the at least two transmit resonators to a receiver, wherein the driver circuitry is configured to adjust the transmission of wireless power based on a magnetic flux polarity recorded at the receiver, and wherein the magnetic flux polarity is defined by a direction in which magnetic flux passes through the receiver. - View Dependent Claims (18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29)
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23. A wireless power transfer system, comprising:
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first and second transmitter resonators configured to transmit wireless power to a receiver resonator implanted within a patient; a receive controller configured to measure first and second polarities of magnetic flux received by the receiver resonator from the first and second transmitter resonators, respectively, the first and second magnetic flux polarities defined by a direction in which the magnetic flux from the first and second transmitter resonators passes through the receiver resonator, the receive controller configured to communicate the measured first and second polarities to a transmit controller of the first and second transmitter resonators; the transmit controller being configured to adjust transmission of power from the first and second transmitter resonators to the receiver resonator based on the measured first and second polarities to maximize power transfer. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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Specification