METHOD AND APPARATUS FOR TRANSMITTING MULTI-RADIO POWER USING TIME DIVISION MODE
First Claim
1. A method for multiple wireless power transfer, capable of transmitting power wirelessly to multiple receivers, by using a time division scheme, comprising the steps of:
- (a) allotting exclusive power transmission time for at least one of the multiple receivers; and
(b) transmitting the power wirelessly to each of the at least one of the receivers;
wherein, during the exclusive power transmission time allotted to an i-th receiver, which is one of the multiple receivers, the receiving state of the i-th receiver is set to ON and those of the other receivers to OFF.
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Accused Products
Abstract
A method for multiple wireless power transfer, capable of transmitting power wirelessly to multiple receivers, by using a time division scheme, includes the steps of: (a) allotting exclusive power transmission time for at least one of the multiple receivers; and (b) transmitting the power wirelessly to each of the at least one of the receivers; wherein, during the exclusive power transmission time allotted to an i-th receiver, which is one of the multiple receivers, the receiving state of the i-th receiver is set to ON and those of the other receivers to OFF. In accordance with the present invention, the following effects can be achieved: the PTE of the multiple receivers may be increased and the PTE of each of the receivers may be kept similarly because the power is transmitted only to one receiver by using the time division scheme and thus interference among multiple receivers is eliminated.
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Citations
15 Claims
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1. A method for multiple wireless power transfer, capable of transmitting power wirelessly to multiple receivers, by using a time division scheme, comprising the steps of:
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(a) allotting exclusive power transmission time for at least one of the multiple receivers; and (b) transmitting the power wirelessly to each of the at least one of the receivers; wherein, during the exclusive power transmission time allotted to an i-th receiver, which is one of the multiple receivers, the receiving state of the i-th receiver is set to ON and those of the other receivers to OFF. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A transmitter included in a multiple wireless power transfer system, capable of transmitting power wirelessly to multiple receivers by using a time division scheme, comprising:
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a time division part for allowing a receiving state of an i-th receiver, which is one of the multiple receivers, to be set to ON and receiving states of the other receivers to be set to OFF during exclusive power transmission time allotted to the i-th receiver by allotting the exclusive power transmission time to each of the at least one of multiple receivers; and a wireless power transmission part for transmitting power wirelessly to each of the at least one of the multiple receivers. - View Dependent Claims (9, 10, 11, 12, 13)
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14. Multiple receivers, included in a multiple wireless power transfer system, capable of receiving power wirelessly from a transmitter by using a time division scheme, each comprising:
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a receiving state controlling part for controlling a receiving state of a specific receiver among the multiple receivers to be set to ON during exclusive power transmission time allotted to the specific receiver and the receiving state of the specific receiver to be set to OFF during the time except the exclusive power transmission time allotted to the specific receiver; and a switching part for shorting a switching circuit connected with load impedance to make it operated at an ON state and opening the switching circuit to make it operated at an OFF state. - View Dependent Claims (15)
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Specification