Wireless power transmitter using a resonance coil via a resonance frequency band and corresponding method
First Claim
1. A wireless power transmission method of a wireless power transmitter for transmitting power using a resonance coil via a resonance frequency band to a wireless power receiver, the wireless power transmission method comprising:
- transmitting a connection signal for identifying a first wireless power receiver;
identifying the first wireless power receiver by receiving a response signal corresponding to the connection signal from the first wireless power receiver;
transmitting state information of the wireless power transmitter to the first wireless power receiver via a specific frequency band, wherein the state information comprises an available amount of power of the wireless power transmitter;
receiving first specific state information from the first wireless power receiver via the specific frequency band, wherein the first specific state information comprises a demanded amount of power of the first wireless power receiver, and wherein the demanded amount of power is adjusted by the first wireless power receiver within the available amount of power of the wireless power transmitter; and
transmitting the power to the first wireless power receiver according to the first specific state information via the resonance frequency band being a resonance-coupled frequency between the wireless power transmitter and the first wireless power receiver and being different from the specific frequency band.
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Abstract
A wireless power transmission method of a wireless power transmitter for transmitting power to a wireless power receiver, according to the embodiment includes transmitting a connection signal for identifying the wireless power receiver; identifying the wireless power receiver by receiving a response signal to the connection signal from the wireless power receiver; negotiating a power transmission condition with the identified wireless power receiver; and transmitting the power to the identified wireless power receiver according to the negotiated power transmission condition.
29 Citations
18 Claims
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1. A wireless power transmission method of a wireless power transmitter for transmitting power using a resonance coil via a resonance frequency band to a wireless power receiver, the wireless power transmission method comprising:
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transmitting a connection signal for identifying a first wireless power receiver; identifying the first wireless power receiver by receiving a response signal corresponding to the connection signal from the first wireless power receiver; transmitting state information of the wireless power transmitter to the first wireless power receiver via a specific frequency band, wherein the state information comprises an available amount of power of the wireless power transmitter; receiving first specific state information from the first wireless power receiver via the specific frequency band, wherein the first specific state information comprises a demanded amount of power of the first wireless power receiver, and wherein the demanded amount of power is adjusted by the first wireless power receiver within the available amount of power of the wireless power transmitter; and transmitting the power to the first wireless power receiver according to the first specific state information via the resonance frequency band being a resonance-coupled frequency between the wireless power transmitter and the first wireless power receiver and being different from the specific frequency band. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A wireless power transmitter using a resonance coil via a resonance frequency band to a wireless power receiver, the wireless power transmitter comprising:
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a transmitting unit configured to transmit a connection signal for identifying a first wireless power receiver; an identifying unit configured to identify the first wireless power receiver by receiving a response signal corresponding to the connection signal from the first wireless power receiver; and a control unit configured to; control the transmitting unit to transmit state information of the wireless power transmitter to the first wireless power receiver via a specific frequency band, the state information including an available amount of power of the wireless power transmitter, receive first specific state information from the first wireless power receiver via the specific frequency band, the first specific state information including a demanded amount of power of the first wireless power, wherein the demanded amount of power is adjusted by the first wireless power receiver within the available amount of power of the wireless power transmitter, and control the transmitting unit to transmit the power to the first wireless power receiver according to the first specific state information via the resonance frequency band being a resonance-coupled frequency between the wireless power transmitter and the first wireless power receiver and being different from the specific frequency band. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification