CONTROL OF POWER TRANSFER
First Claim
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1. An apparatus for contactless charging a receiver device, comprising:
- at least one transmitter for transferring energy through a non-radiative electromagnetic field to the receiver device in at least two channels,a controller configured to control power transfer by said at least one transmitter via a first channel out of said at least two channels, defined by a first frequency band, in dependence upon;
a measurement, during transmission in the first channel, dependent upon an impedance of the first channel anda measurement, during transmission in a second channel out of said at least two channels, defined by a second frequency band, dependent upon an impedance of the second channel.
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Abstract
An apparatus comprising: a first transmitter configured to transmit in a first channel defined by a first frequency band; a second transmitter configured to transmit in a second channel defined by a second frequency band; and a controller configured to control power transfer via the first channel in dependence upon an impedance of the first channel and an impedance of the second channel.
20 Citations
27 Claims
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1. An apparatus for contactless charging a receiver device, comprising:
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at least one transmitter for transferring energy through a non-radiative electromagnetic field to the receiver device in at least two channels, a controller configured to control power transfer by said at least one transmitter via a first channel out of said at least two channels, defined by a first frequency band, in dependence upon; a measurement, during transmission in the first channel, dependent upon an impedance of the first channel and a measurement, during transmission in a second channel out of said at least two channels, defined by a second frequency band, dependent upon an impedance of the second channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of contactless charging of a receiver device, comprising:
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controlling transmission of energy through a non-radiative electromagnetic field to the receiver device in a first channel defined by a first frequency band to determine a measurement dependent upon impedance of the first channel; controlling transmission of energy through a non-radiative electromagnetic field to the receiver device in a second channel defined by a second frequency band to determine a measurement dependent upon impedance of the second channel; and controlling power transfer in the first channel in dependence upon the measurement dependent upon impedance of the first channel and the measurement dependent upon impedance of the second channel. - View Dependent Claims (14, 15, 16, 20, 21, 22)
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17. (canceled)
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26. (canceled)
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27. An apparatus comprising:
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a first transmitter configured to transmit in a first channel defined by a first frequency band; a second transmitter configured to transmit in a second channel defined by a second frequency band; and a controller configured to control power transfer via the first channel in dependence upon an impedance of the first channel and an impedance of the second channel.
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Specification