WIRELESS POWER CONTROL
First Claim
Patent Images
1. A remote device for receiving wireless power from a wireless power supply, said remote device comprising:
- an adaptive power receiver capable of receiving power from the wireless power supply through inductive coupling, said adaptive power receiver configurable to a first mode and configurable to a second mode;
a load for receiving electrical power generated in said adaptive power receiver, wherein in said first mode, said adaptive power receiver is capable of storing energy received from the wireless power supply, wherein said second mode, said adaptive power receiver releases said stored energy to said load; and
a controller operably coupled to the adaptive power receiver, said controller capable of controlling power received from the wireless power supply by selectively configuring the adaptive power receiver between said first mode and said second mode.
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Abstract
A remote device in accordance with the present invention includes an adaptive power receiver that receives wireless power from the wireless power supply by induction. The adaptive power receiver may be switched among two or more modes of operation, including, for example, a high-Q mode and a low-Q mode. By controlling the switching between modes, the amount of energy received by the adaptive receiver may be controlled. This control is a form of adaptive resonance control or Q control.
348 Citations
34 Claims
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1. A remote device for receiving wireless power from a wireless power supply, said remote device comprising:
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an adaptive power receiver capable of receiving power from the wireless power supply through inductive coupling, said adaptive power receiver configurable to a first mode and configurable to a second mode; a load for receiving electrical power generated in said adaptive power receiver, wherein in said first mode, said adaptive power receiver is capable of storing energy received from the wireless power supply, wherein said second mode, said adaptive power receiver releases said stored energy to said load; and a controller operably coupled to the adaptive power receiver, said controller capable of controlling power received from the wireless power supply by selectively configuring the adaptive power receiver between said first mode and said second mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for controlling power received from a wireless power supply in a remote device, said method comprising:
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receiving power in an adaptive power receiver via inductive coupling with the wireless power supply; selectively configuring the adaptive power receiver in a first mode in which the adaptive power receiver is capable of storing energy received from the wireless power supply; and selectively configuring the adaptive power receiver in a second mode in which the adaptive power receiver releases stored energy to a load. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A wireless power transmitter for transmitting wireless power to a remote device, said wireless power transmitter comprising:
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an adaptive power transmitter capable of transmitting wireless power to the remote device, said adaptive power transmitter configurable to a first mode and configurable to a second mode; wherein in said first mode, said adaptive power transmitter has a first resonant frequency, wherein in said second mode, said adaptive power transmitter has a second, different, resonant frequency; and a controller operably coupled to the adaptive power receiver, said controller capable of controlling power transmitted by the wireless power supply by selectively configuring the adaptive power transmitter between said first mode and said second mode. - View Dependent Claims (26, 27, 28, 29)
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30. A wireless power transmitter for transmitting wireless power to a remote device, said wireless power transmitter comprising:
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an adaptive power transmitter capable of transmitting wireless power to the remote device, said adaptive power transmitter configurable to a first mode and configurable to a second mode; wherein in said first mode, said adaptive power transmitter has a lower Q factor, wherein in said second mode, said adaptive power transmitter has a higher Q factor; and a controller operably coupled to said adaptive power receiver, said controller capable of controlling power transmitted by the wireless power supply by selectively configuring said adaptive power transmitter between said first mode and said second mode. - View Dependent Claims (31, 32, 33, 34)
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Specification