METHOD AND POWER TRANSMITTER FOR CONTROLLING POWER TRANSMISSION
First Claim
1. A method of controlling power transmission in a power transmitter, the method comprising the steps of:
- receiving, from at least one power receiver, a minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver;
receiving, from the at least one power receiver, a report about a power reception condition, wherein the report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter;
determining whether the measured voltage is between the minimum voltage and the reference voltage; and
adjusting and supplying power, when the measured voltage is not between the minimum voltage and the reference voltage.
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Accused Products
Abstract
Methods and apparatus are provided for controlling power transmission. A minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver, are received from at least one power receiver. A report about a power reception condition is received from the at least one power receiver. The report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter. It is determined whether the measured voltage is between the minimum voltage and the reference voltage. Power is adjusted and supplied when the measured voltage is not between the minimum voltage and the reference voltage.
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Citations
23 Claims
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1. A method of controlling power transmission in a power transmitter, the method comprising the steps of:
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receiving, from at least one power receiver, a minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver; receiving, from the at least one power receiver, a report about a power reception condition, wherein the report includes a measured voltage at the at least one power receiver during power transmission from the power transmitter; determining whether the measured voltage is between the minimum voltage and the reference voltage; and adjusting and supplying power, when the measured voltage is not between the minimum voltage and the reference voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of controlling power transmission in a power transmitter, the method comprising the steps of:
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receiving, from a power receiver, a report about a power reception condition, wherein the report includes a measured voltage during power transmission from the power transmitter, a reference voltage used to divide a range between a minimum voltage and a maximum voltage of the power receiver, and a demanded voltage required by the power receiver; determining where the measured voltage is disposed with respect to the minimum voltage, the maximum voltage and the reference voltage, when the report about the power reception condition is received; and adjusting and supplying power according to a power control preference that is based on where the measured voltage is disposed with respect to the minimum voltage, the maximum voltage, and the reference voltage. - View Dependent Claims (15, 16, 17)
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18. A power transmitter for controlling power transmission, the power transmitter comprising:
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a wireless communication unit for receiving, from at least one power receiver, a minimum voltage and a maximum voltage receivable at the at least one power receiver, a reference voltage used to divide a range between the minimum voltage and the maximum voltage, and a demanded voltage required by the at least one power receiver, and receiving, from the at least one power receiver, a report about a power reception condition, wherein the report includes a measured voltage at the at least one power receiver during power transmission of the power transmitter; a controller for determining whether the measured voltage is between the minimum voltage and the reference voltage, and adjusting power when the measured voltage is not between the minimum voltage and the reference voltage; and a resonant signal generator for supplying the power to the power receiver under control of the controller. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification