Method and power transmitter for controlling power transmission
First Claim
1. A method of controlling power transmission in a power transmitter, the method comprising:
- receiving, from a plurality of power receivers, voltage information required by the plurality of power receivers, wherein the voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage;
transmitting power to the plurality of power receivers;
receiving, from the plurality of power receivers, a report about a power reception condition while transmitting the power, wherein the report includes a measured voltage at the plurality of power receivers;
selecting one of the plurality of power receivers; and
adjusting an amount of the power by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver.
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Accused Products
Abstract
Methods and apparatuses are provided for method is provided for controlling power transmission in a power transmitter. Voltage information required by a plurality of power receivers is received from the plurality of power receivers. The voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage. Power is transmitted to the plurality of power receivers. A report about a power reception condition while transmitting the power is received from the plurality of power receivers. The report includes a measured voltage at the plurality of power receivers. One of the plurality of power receivers is selected. An amount of the power is adjusted by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver.
11 Citations
14 Claims
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1. A method of controlling power transmission in a power transmitter, the method comprising:
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receiving, from a plurality of power receivers, voltage information required by the plurality of power receivers, wherein the voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage; transmitting power to the plurality of power receivers; receiving, from the plurality of power receivers, a report about a power reception condition while transmitting the power, wherein the report includes a measured voltage at the plurality of power receivers; selecting one of the plurality of power receivers; and adjusting an amount of the power by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A power transmitter for controlling power transmission, the power transmitter comprising:
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a resonator; a power supply; a wireless communication unit configured to receive, from a plurality of power receivers, voltage information required by the plurality of power receivers, wherein the voltage information includes a minimum voltage, a reference voltage that is greater than the minimum voltage, and a demanded voltage, and to receive, from the plurality of power receivers, a report about a power reception condition while transmitting power, wherein the report includes a measured voltage at the plurality of power receivers; and a controller configured to; control the power supply to transmit the power to the plurality of power receivers through the resonator; select one of the plurality of power receivers; and adjust an amount of the power by minimizing a difference between the demanded voltage and the measured voltage of the selected power receiver. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification