Systems and methods for coupling power to devices
First Claim
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1. A method to deliver power wirelessly to a device, the method comprising:
- scanning, by a power delivery system, to detect the device by energizing one or more transmit coils of the power delivery system;
receiving a voltage level of a receive coil of the device, wherein the voltage level is used to determine whether the device received power wirelessly from at least one of the one or more transmit coils;
adjusting a configuration of the at least one transmit coil based on the voltage level; and
storing one or more parameters associated with the device in a first database, wherein the one or more parameters associated with the device comprises a description of the receive coil, a resonant frequency, a specified voltage to charge the device, a specified current to charge the device, or combinations thereof.
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Abstract
Systems and methods to wirelessly transmit power are provided. A power delivery system may include a central controller assembly and a transmit assembly. The central controller assembly can form transmit coils in the transmit assembly. The central controller assembly can also receive information from devices coupled to the transmit assembly and optimize the transmit coils based on the received information and on information about the transmit assembly.
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Citations
19 Claims
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1. A method to deliver power wirelessly to a device, the method comprising:
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scanning, by a power delivery system, to detect the device by energizing one or more transmit coils of the power delivery system; receiving a voltage level of a receive coil of the device, wherein the voltage level is used to determine whether the device received power wirelessly from at least one of the one or more transmit coils; adjusting a configuration of the at least one transmit coil based on the voltage level; and storing one or more parameters associated with the device in a first database, wherein the one or more parameters associated with the device comprises a description of the receive coil, a resonant frequency, a specified voltage to charge the device, a specified current to charge the device, or combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method to deliver power wirelessly to a device, the method comprising:
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scanning, by a power delivery system, to detect the device by energizing one or more transmit coils of the power delivery system; receiving a voltage level of a receive coil of the device, wherein the voltage level is used to determine whether the device received power wirelessly from at least one of the one or more transmit coils; and adjusting a configuration of the at least one transmit coil based on the voltage level, wherein adjusting the configuration of the at least one transmit coil comprises; comparing a frequency of the at least one transmit coil to a frequency received from the device; and adjusting a variable capacitor to change the frequency of the at least one transmit coil to match the frequency received from the device. - View Dependent Claims (10, 11, 12, 13)
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14. A method to provide power wirelessly to a device, the method comprising:
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providing power from a transmit coil to a receive coil, wherein the receive coil is associated with the device; determining whether a frequency of the transmit coil matches a predetermined frequency, wherein the predetermined frequency is a resonant frequency of the device; and adjusting one or more parameters associated with the transmit coil based on determining that the frequency of the transmit coil does not match the predetermined frequency, wherein the adjusting one or more parameters associated with the transmit coil comprises adjusting a capacitance of the transmit coil. - View Dependent Claims (15, 16, 17)
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18. A system to deliver power wirelessly, the system comprising:
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a device comprising one or more receive coils configured to receive power; and a transmit assembly comprising one or more transmit coils, wherein the transmit assembly is configured to perform operations comprising; providing power from at least one of the one or more transmit coils to the one or more receive coils; determining whether a frequency of the at least one of the one or more transmit coils matches a predetermined frequency, wherein the predetermined frequency is a resonant frequency of the device; adjusting one or more parameters associated with the at least one of the one or more transmit coils based on determining that the frequency of the at least one of the one or more transmit coils does not match the predetermined frequency; receiving a measured voltage associated with each of the one or more receive coils; comparing the measured voltage associated with each of the one or more receive coils to a predetermined voltage; and determining an efficiency of power transfer between the at least one of the one or more transmit coils and each of the one or more receive coils based at least on the comparison of the measured voltage with the predetermined voltage. - View Dependent Claims (19)
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Specification