Method for distributing wireless charge power for multiple wireless power receivers
First Claim
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1. A method for controlling a wireless power transmitter, the method comprising:
- transmitting, through a power transmitting circuit of the wireless power transmitter, power for charging a first wireless power receiver;
receiving, through a communication unit of the wireless power transmitter, demand power information of a second wireless power receiver while transmitting the power for charging the first wireless power receiver, wherein the demand power information of the second wireless power receiver comprises a maximum power for the second wireless power receiver;
identifying, by a controller of the wireless power transmitter, whether the wireless power transmitter is capable of providing the maximum power for the second wireless power receiver;
transmitting, through the communication unit, a power adjustment command to the second wireless power receiver if the wireless power transmitter is not capable of providing the maximum power for the second wireless power receiver, wherein the power adjustment command requests to reduce an amount of power to be received by the second wireless power receiver to a range that the wireless power transmitter is capable of supporting; and
transmitting, through the power transmitting circuit, power for charging the first wireless power receiver and the second wireless power receiver based on at least the reduced amount of power.
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Abstract
One embodiment of the present invention is capable of providing a method for efficiently transmitting power for multiple wireless power receivers by distributing the power of the wireless power receivers as power which matches the respective wireless power receivers in accordance with demand power information from the multiple wireless power receivers.
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Citations
15 Claims
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1. A method for controlling a wireless power transmitter, the method comprising:
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transmitting, through a power transmitting circuit of the wireless power transmitter, power for charging a first wireless power receiver; receiving, through a communication unit of the wireless power transmitter, demand power information of a second wireless power receiver while transmitting the power for charging the first wireless power receiver, wherein the demand power information of the second wireless power receiver comprises a maximum power for the second wireless power receiver; identifying, by a controller of the wireless power transmitter, whether the wireless power transmitter is capable of providing the maximum power for the second wireless power receiver; transmitting, through the communication unit, a power adjustment command to the second wireless power receiver if the wireless power transmitter is not capable of providing the maximum power for the second wireless power receiver, wherein the power adjustment command requests to reduce an amount of power to be received by the second wireless power receiver to a range that the wireless power transmitter is capable of supporting; and transmitting, through the power transmitting circuit, power for charging the first wireless power receiver and the second wireless power receiver based on at least the reduced amount of power. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless power transmitter comprising:
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a power transmitting circuit configured to transmit power for charging a first wireless power receiver; a communication unit; and a controller configured to; receive, through the communication unit, demand power information of a second wireless power receiver while transmitting the power for charging the first wireless power receiver, wherein the demand power information of the second wireless power receiver comprises a maximum power for the second wireless power receiver, identify whether the wireless power transmitter is capable of providing the maximum power for the second wireless power receiver, transmit, through the communication unit, a power adjustment command to the second wireless power receiver if the wireless power transmitter is not capable of providing the maximum power for the second wireless power receiver, wherein the power adjustment command requests to reduce an amount of power drawn by the second wireless power receiver to a range that the wireless power transmitter is capable of supporting, and transmit, through the power transmitting circuit, power for charging the first wireless power receiver and the second wireless power receiver, respectively, based at least the reduced amount of power. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification