APPARATUS, SYSTEM, AND METHOD FOR BACK-CHANNEL COMMUNICATION IN AN INDUCTIVE WIRELESS POWER TRANSFER SYSTEM
First Claim
1. An inductive wireless power transfer device, comprising:
- a transmitter, comprising;
a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage; and
a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver.
3 Assignments
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Accused Products
Abstract
An inductive wireless power transfer device comprises a transmitter that comprises a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage, and a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver. An inductive wireless power receiving device comprises a receiver that comprises a receive coil configured to generate a time varying signal in response to receiving a modulated wireless power signal from a transmitter in a coupling region, and a demodulator configured to demodulate the modulated wireless power signal from an established back-channel communication link from the transmitter to a receiver. Related inductive wireless power transfer systems and methods for back-channel communication from the transmitter to the receiver of an inductive wireless power transfer system are disclosed.
22 Citations
22 Claims
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1. An inductive wireless power transfer device, comprising:
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a transmitter, comprising; a transmit coil configured to generate a wireless power signal to a coupling region in response to an input voltage; and a modulator configured to modulate the wireless power signal and encode data with the wireless power signal to establish a back-channel communication link from the transmitter to a receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An inductive wireless power receiving device, comprising:
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a receiver, comprising; a receive coil configured to generate a time varying signal in response to receiving a modulated wireless power signal from a transmitter in a coupling region; and a demodulator configured to demodulate the modulated wireless power signal from an established back-channel communication link from the transmitter to a receiver. - View Dependent Claims (16)
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17. A method for communicating between a transmitter to a receiver in an inductive wireless power transfer system, the method comprising:
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generating a wireless power signal through a transmit coil of a transmitter to a receive coil of a receiver; and modulating the wireless power signal on the transmitter side for communicating encoded data with the wireless power signal being transmitted from the transmitter to the receiver. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification