Apparatus and method for charging control in wireless charging system
First Claim
1. An electronic device for charge control, the electronic device comprising:
- a resonator configured to receive a power in a power receiving mode;
an alternating current-to-direct-current (AC/DC) converter configured to convert the received power to a direct current (DC) signal in the power receiving mode;
a direct current-to-direct current (DC/DC) converter configured to step down a voltage level of the DC signal to a voltage level required for a load in the power receiving mode; and
a controller configured to connect the resonator to the AC/DC converter in the power receiving mode,wherein the controller is further configured to disconnect the resonator from the AC/DC converter and connect the resonator to an open port to relay the power in a power relay mode.
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Abstract
An apparatus and a method for charge control are provided. The apparatus for charge control may include an integrated direct current-to-direct current (DC/DC) converter configured to step up an output voltage level of a load to be greater than or equal to a supply voltage level set in a power amplifier, and the power amplifier configured to convert a direct current (DC) voltage stepped up by the integrated DC/DC converter into an alternating current (AC) voltage based on a resonant frequency, and to amplify the converted AC voltage. The apparatus for charge control may include a rectification unit configured to convert an AC power received wirelessly into a DC power; and a DC/DC converter configured to step down a voltage level of the DC power to a voltage level required by a load in the receiving mode.
13 Citations
16 Claims
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1. An electronic device for charge control, the electronic device comprising:
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a resonator configured to receive a power in a power receiving mode; an alternating current-to-direct-current (AC/DC) converter configured to convert the received power to a direct current (DC) signal in the power receiving mode; a direct current-to-direct current (DC/DC) converter configured to step down a voltage level of the DC signal to a voltage level required for a load in the power receiving mode; and a controller configured to connect the resonator to the AC/DC converter in the power receiving mode, wherein the controller is further configured to disconnect the resonator from the AC/DC converter and connect the resonator to an open port to relay the power in a power relay mode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electronic device for charge control, the electronic device comprising:
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a resonator configured to transmit a power in a power transmitting mode; a direct current-to-direct current (DC/DC) converter configured to step up a voltage level output from a load to be greater than or equal to a supply voltage level for a power amplifier in the power transmitting mode; and a controller configured to connect the resonator to a power amplifier in the power transmitting mode, wherein the controller is further configured to disconnect the resonator from the power amplifier and connect the resonator to an open port to relay a power in a relay mode. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method for charge control, the method comprising:
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receiving, by a resonator, a power in a power receiving mode; converting, by an alternating current-to-direct-current (AC/DC) converter, the received power to a direct current (DC) signal in the power receiving mode; and stepping down, by a direct current-to-direct-current (DC/DC) converter, a voltage level of the DC signal to a voltage level required for a load in the power receiving mode, wherein the resonator is connected to the AC/DC converter in the power receiving mode, and ‘
wherein the resonator is disconnected from the AC/DC converter and is connected to an open port to relay the power in a power relay mode. - View Dependent Claims (15, 16)
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Specification