Wireless Power Transfer (WPT) for a Mobile Communication Device
First Claim
1. A wireless power transfer (WPT) station for transferring power to a WPT enabled communication device, the WPT station comprising:
- a coil module configured to provide a magnetic field;
a load detection module configured to detect a presence of the WPT enabled communication device in the magnetic field;
a controller module configured to exchange a parameter with the WPT enabled communication device when the WPT enabled communication device is present in the magnetic field and to select one or more coils from among a plurality of coils within the coil module for transferring the power to the WPT enabled communication device; and
a coil driving module configured to provide a charging signal to the one or more selected coils to be inductively transferred to the WPT enabled communication device using the magnetic field.
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Accused Products
Abstract
A wireless power transfer (WPT) station is disclosed for wirelessly transferring power to a WPT enabled device. To initiate charging of the WPT enabled device, the WPT enabled device is simply moved to be proximate to the WPT station. After an initialization and setup period, the WPT station transmits power transfer signals to the WPT enabled device. The WPT enabled device receives the transferred power transfer signals, typically through inductive coupling, and extracts a voltage and/or current therefrom for charging. The extracted voltage and/or current can then be rectified and/or regulated by the WPT enabled device to produce a charging voltage and/or charging current that can be stored in a power storage element, such as a battery or a capacitor to provide some examples, of the WPT enabled device.
34 Citations
20 Claims
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1. A wireless power transfer (WPT) station for transferring power to a WPT enabled communication device, the WPT station comprising:
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a coil module configured to provide a magnetic field; a load detection module configured to detect a presence of the WPT enabled communication device in the magnetic field; a controller module configured to exchange a parameter with the WPT enabled communication device when the WPT enabled communication device is present in the magnetic field and to select one or more coils from among a plurality of coils within the coil module for transferring the power to the WPT enabled communication device; and a coil driving module configured to provide a charging signal to the one or more selected coils to be inductively transferred to the WPT enabled communication device using the magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless power transfer (WPT) station for transferring power to a WPT enabled communication device, the WPT station comprising:
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a communications module configured to initiate communication with the WPT enabled communication device, the communications module being configured to operate in accordance with a non-WPT communication standard or protocol; a controller module configured to exchange a parameter with the WPT enabled communication device upon initiating communication with the WPT enabled communication device and to select one or more coils from among a plurality of coils for transferring the power to the WPT enabled communication device; and a coil driving module configured to provide a charging signal to the one or more selected coils to be inductively transferred to the WPT enabled communication device using a magnetic field. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A wireless power transfer (WPT) station for transferring power to a WPT enabled communication device, the WPT station comprising:
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a coil module, having a plurality of inner coils and an outer coil disposed around the plurality of inner coils, configured to provide a first magnetic field using the outer coil; a load detection module configured to detect a presence of the WPT enabled communication device in the magnetic field; a controller module configured to exchange a parameter with the WPT enabled communication device when the WPT enabled communication device is present in the magnetic field and to select one or more coils from among the plurality of inner coils for transferring the power to the WPT enabled communication device; and a coil driving module configured to provide a charging signal to the one or more selected coils to be inductively transferred to the WPT enabled communication device using a second magnetic field. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification