WIRELESS POWER CHARGING METHOD AND APPARATUS
First Claim
1. A wireless charging method by a power supply device for wirelessly supplying power to a power receiving device in a wireless power charging system, the wireless charging method comprising:
- checking an amount of charging power required by the power receiving device;
determining a power level of the charging power to be supplied over time, based on the amount of the charging power required by the power receiving device;
transmitting the charging power corresponding to the determined power level to the power receiving device;
periodically receiving a report message about a charging situation of the power receiving device from the power receiving device;
calculating remaining required power, based on the report message received from the power receiving device;
adjusting the determined power level depending on the calculated remaining power; and
transmitting the charging power corresponding to the adjusted power level to the power receiving device.
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Accused Products
Abstract
A method and apparatus are provided that efficiently perform wireless power charging. A power supply device checks an amount of charging power required by the power receiving device; determines a power level of the charging power that to be supplied over time, based on the amount of the charging power required by the power receiving device; transmits the charging power corresponding to the determined power level to the power receiving device; periodically receives a report message about a charging situation of the power receiving device from the power receiving device; calculates remaining required power, based on the report message received from the power receiving device; adjusts the determined power level depending on the calculated remaining power; and transmits the charging power corresponding to the adjusted power level to the power receiving device.
47 Citations
20 Claims
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1. A wireless charging method by a power supply device for wirelessly supplying power to a power receiving device in a wireless power charging system, the wireless charging method comprising:
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checking an amount of charging power required by the power receiving device; determining a power level of the charging power to be supplied over time, based on the amount of the charging power required by the power receiving device; transmitting the charging power corresponding to the determined power level to the power receiving device; periodically receiving a report message about a charging situation of the power receiving device from the power receiving device; calculating remaining required power, based on the report message received from the power receiving device; adjusting the determined power level depending on the calculated remaining power; and transmitting the charging power corresponding to the adjusted power level to the power receiving device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power supply device for wirelessly supplying power to a power receiving device in a wireless power charging system, the power supply device comprising:
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a source resonator for transmitting power; a communication unit for periodically receiving a report message about a charging situation of the power receiving device from the power receiving device; and a controller for checking an amount of charging power required by the power receiving device, determining a power level of the charging power to be supplied over time, based on the amount of the charging power required by the power receiving device, transmitting the charging power corresponding to the determined power level to the power receiving device;
periodically receiving a report message about a charging situation of the power receiving device from the power receiving device;
calculating remaining required power, based on the report message received from the power receiving device;
adjusting the determined power level depending on the calculated remaining power; and
transmitting the charging power corresponding to the adjusted power level to the power receiving device. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification