METHOD FOR TRANSMITTING DATA AND WIRELESS CHARGER FOR IMPLEMENTING SAME
First Claim
1. A method for transmitting data in a wireless charger configured to power a load, said method comprising:
- modulating an electric parameter on a first inductive element in accordance with a data signal to be transmitted to obtain a first signal characterizing said data signal;
sensing said first signal to generate a second signal on a second inductive element; and
demodulating said second signal to obtain said data signal transmitted thereto;
wherein during data transmission, an output current of said wireless charger is set at a preset current value;
until the end of data transmission said output current is resumed consistent with a driving current of said load.
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Accused Products
Abstract
A method for transmitting data and a wireless charging equipment using the same are disclosed. When the wireless charger transmits data, an output current of the wireless charger is controlled at a preset current value so that there is a higher variation in amplitude of a current or a voltage on an inductive element to thereby enable a signal receiver to demodulate the signal. At the end of data transmission, the output current is resumed consistent with a driving current of the load at the moment. The present disclosure can address the problem of impossible normal communication in the wireless charger at the circumstance of a very low driving current of the load without any increase in cost and complexity of the circuit.
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Citations
14 Claims
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1. A method for transmitting data in a wireless charger configured to power a load, said method comprising:
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modulating an electric parameter on a first inductive element in accordance with a data signal to be transmitted to obtain a first signal characterizing said data signal; sensing said first signal to generate a second signal on a second inductive element; and demodulating said second signal to obtain said data signal transmitted thereto; wherein during data transmission, an output current of said wireless charger is set at a preset current value;
until the end of data transmission said output current is resumed consistent with a driving current of said load. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless charger configured to power a load, comprising:
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a signal transmitter configured to modulate an electric parameter on a first inductive element in accordance with a data signal to be transmitted to obtain a first signal characterizing said data signal; and a signal receiver configured to sense said first current signal to generate a second signal on a second inductive element and to demodulate said second signal to obtain said data signal transmitted thereto; wherein during data transmission between said signal transmitter and said signal receiver, output current of said wireless charger is set at a preset current value;
until the end of data transmission said output current is resumed consistent with a driving current of said load. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification