Wireless power transmitters and receivers, and method for permitting a wireless power receiver by a wireless power transmitter
First Claim
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1. A method for permitting a wireless power receiver to be charged by a wireless power transmitter, the method comprising:
- transmitting a first power for initiating a communication unit of the wireless power receiver;
establishing a communication connection with the wireless power receiver while transmitting the first power;
receiving information corresponding to required power from the wireless power receiver;
determining whether the wireless power transmitter has an available power to the wireless power receiver, based at least in part on the received information;
if the wireless power transmitter does not have the available power, generating a first control signal including permission information indicating that charging the wireless power receiver is permitted with a waiting time and transmitting the first control signal to the wireless power receiver; and
if the wireless power transmitter has the available power, generating a second control signal including permission information indicating that the wireless power receiver is permitted to begin charging and transmitting the second control signal to the wireless power receiver.
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Abstract
An apparatus and method are provided for permitting a wireless power receiver to be charged by a wireless power transmitter. The method includes generating a Power Receiving Unit (PRU) control signal including permission information indicating charging permission for the wireless power receiver; and transmitting the PRU control signal to the wireless power receiver.
12 Citations
21 Claims
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1. A method for permitting a wireless power receiver to be charged by a wireless power transmitter, the method comprising:
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transmitting a first power for initiating a communication unit of the wireless power receiver; establishing a communication connection with the wireless power receiver while transmitting the first power; receiving information corresponding to required power from the wireless power receiver; determining whether the wireless power transmitter has an available power to the wireless power receiver, based at least in part on the received information; if the wireless power transmitter does not have the available power, generating a first control signal including permission information indicating that charging the wireless power receiver is permitted with a waiting time and transmitting the first control signal to the wireless power receiver; and if the wireless power transmitter has the available power, generating a second control signal including permission information indicating that the wireless power receiver is permitted to begin charging and transmitting the second control signal to the wireless power receiver. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A control method of a wireless power receiver, the method comprising:
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receiving, through a power receiving circuit, a first power for initiating a communication unit from a wireless power transmitter; establishing a communication connection with the wireless power transmitter while receiving the first power; transmitting information corresponding to required power to the wireless power transmitter; receiving, from a wireless power transmitter, a first control signal including permission information indicating that charging the wireless power receiver is permitted with a waiting time if the wireless power transmitter does not have an available power; determining whether the wireless power receiver is on standby; generating a reporting signal including standby information indicating whether or not the wireless power receiver is determined to be on standby for charging; transmitting the reporting signal to the wireless power transmitter; and receiving a second control signal including permission information indicating that the wireless power receiver is permitted to begin charging if wireless power transmitter has the available power. - View Dependent Claims (8, 9, 10)
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11. A wireless power transmitter for wirelessly charging a wireless power receiver, the wireless power transmitter comprising:
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a power transmitter configured to wirelessly transmit charging power to the wireless power receiver; a communication unit configured to establish a communication connection with the wireless power receiver while transmitting a first power; and a controller configured to; in response to receiving information corresponding to required power from the wireless power receiver, determine whether the wireless power transmitter has an available power to the wireless power receiver, based at least in part on the received information; generate a first control signal including permission information indicating that charging the wireless power receiver is permitted with a waiting time if the wireless power transmitter does not have the available power, control the communication unit to transmit the first control signal to the wireless power receiver, generate a second control signal including permission information indicating that the wireless power receiver is permitted to begin charging, if the wireless power transmitter has the available power, and control the communication unit to transmit the second control signal to the wireless power receiver. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A wireless power receiver for receiving charging power from a wireless power transmitter, the wireless power receiver comprising:
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a power receiver configured to receive charging power from the wireless power transmitter; a communication unit configured to establish a communication connection with the wireless power transmitter while receiving a first power, receive, from the wireless power transmitter, a first control signal including permission information indicating that charging the wireless power receiver is permitted with a waiting time when the wireless power transmitter does not have an available power; a display unit configured to display a message asking a user whether to be on standby; and a controller configured to generate a reporting signal including standby information indicating whether the wireless power receiver is on standby for charging and to control the communication unit to transmit the reporting signal to the wireless power transmitter, wherein the communication unit receives a second control signal including permission information indicating that the wireless power receiver is permitted to begin charging if the wireless power transmitter has the available power. - View Dependent Claims (19, 20, 21)
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Specification