System and method for selecting power transmitters across a wireless power coupling
First Claim
1. A method for selecting a wireless power outlet from a multi-outlet power transmission surface for transferring power to at least one power receiver having a secondary coil connectable to an electric load, wherein said at least one power receiver is configured to transmit communication signals, and said multi-outlet power transmission surface comprises:
- a power transmission system, comprising an array of wireless power outlets, each said power outlet being associated with a primary coil connectable to a driver; and
a signal transfer system, said signal transfer system comprising at least one signal receiver unit associated with each said power outlet of the array, and a processing unit in communication with said at least one signal receiver unit, the method comprising;
detecting said communication signals from said at least one power receiver;
analyzing signal-quality of each said detected communication signal by calculating its deviation from an associated transmitted signal profile; and
selecting the wireless power outlet having the detected communication signal with required signal-quality.
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Accused Products
Abstract
Aspects of the present invention relates to providing devices, a system and method for controlling wireless power transfer across an inductive power coupling. The system, particularly, relates to enabling selection of a wireless power outlet of a multi-outlet power transmission surface closest to the location of a power receiver connected to an electric load and placed upon the surface. Accordingly, the multi-outlet power transmission surface comprising two sub-systems, a power transmission system and a signal transfer system, each operable independently and continuously. Further, the signal transfer system controls the activation of wireless power, configured to analyze the signal-quality of each detected communication signal received from a power receiver and thereby to identify the wireless power outlet closest to the location of the power receiver.
21 Citations
23 Claims
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1. A method for selecting a wireless power outlet from a multi-outlet power transmission surface for transferring power to at least one power receiver having a secondary coil connectable to an electric load, wherein said at least one power receiver is configured to transmit communication signals, and said multi-outlet power transmission surface comprises:
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a power transmission system, comprising an array of wireless power outlets, each said power outlet being associated with a primary coil connectable to a driver; and a signal transfer system, said signal transfer system comprising at least one signal receiver unit associated with each said power outlet of the array, and a processing unit in communication with said at least one signal receiver unit, the method comprising; detecting said communication signals from said at least one power receiver; analyzing signal-quality of each said detected communication signal by calculating its deviation from an associated transmitted signal profile; and selecting the wireless power outlet having the detected communication signal with required signal-quality. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A multi-outlet power transmission surface for transmitting power wirelessly to at least one power receiver having a secondary coil connectable to a power load, said at least one power receiver is configured to transmit communication signals, said power transmission surface comprising:
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a power transmission system, comprising an array of wireless power outlets, each said power outlet is associated with a primary coil connectable to a driver wired to a power source, said primary coil connected inductively to said secondary coil when activated; a signal transfer system, comprising; at least one signal receiver unit associated with each said power outlet of the array, said signal receiver unit operable to detect said communication signals via its associated power outlet; and a processing unit in communication with said at least one signal receiver unit; wherein said processing unit is operable to analyze signal-quality of each detected communication signal by obtaining a signal-to-noise ratio value of each said detected communication signal and thereby to identify the wireless power outlet closest to the location of said at least one power receiver. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification