Wireless Power System Including Impedance matching network
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Accused Products
Abstract
A wireless power system for powering a television includes a source resonator, configured to generate an oscillating magnetic field, and at least one television component attached to at least one device resonator, wherein the at least one device resonator is configured to wirelessly receive power from the source resonator via the oscillating magnetic field when the distance between the source resonator and the at least one device resonator is more than 5 cm, and wherein at least one television component draws at least 10 Watts of power.
61 Citations
54 Claims
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1-20. -20. (canceled)
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21. A module for use in a wireless power system, the module comprising:
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a resonator circuit comprising an inductive element formed by at least one loop of conductive material, the resonator circuit comprising additional circuitry electrically connected directly to the inductive element to couple power between the inductive element and an external circuit having an impedance Z0, wherein the inductive element forms a resonator with at least a portion of the additional circuitry, wherein the additional circuitry has two terminals for connecting to the external circuit, and wherein the external circuit comprises a power supply or a load, wherein the resonator is a high-Q resonator having an intrinsic Q greater than 100 for a resonant frequency f=ω
/2π
between 10 kHz and 100 MHz, andwherein the two terminals for connecting the additional circuitry to the external circuit are located at points that are electrically symmetric with respect to an axis defined by voltage-node points for the resonator. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A module for use in a wireless power system, the module comprising:
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a resonator circuit comprising an inductive element formed by at least one loop of conductive material, the resonator circuit comprising additional circuitry electrically connected directly to the inductive element to couple power between the inductive element and an external circuit having an impedance Z0, wherein the inductive element forms a resonator with at least a portion of the additional circuitry, wherein the additional circuitry has two terminals for connecting to the external circuit, and wherein the external circuit comprises a power supply or a load, wherein the resonator is a high-Q resonator having an intrinsic Q greater than 100 for a resonant frequency f=ω
/2π
between 10 kHz and 100 MHz, andwherein the additional circuitry comprises a first circuit block electrically connected directly to the inductive element to form a closed circuit with the inductive element and comprising at least one capacitive element in series with the inductive element and at least one capacitive element in parallel with the inductive element, and wherein the additional circuitry further comprises a second circuit block directly electrically connected to the first circuit block and one of the terminals, the second circuit block comprising at least one element having a reactance. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54)
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Specification