POWER TRANSMITTER AND METHOD FOR DETECTING NON-INTENDED OBJECT OF POWER RECEPTION
First Claim
1. A method for detecting a non-intended object of power reception by a power transmitter, the method comprising the steps of:
- determining whether a load change is sensed that has a value greater than or equal to a predetermined threshold;
performing power transmission for communication, when the load change is sensed;
determining whether a subscription request, for subscribing to a network for wirelessly transmitting power, is received within a predetermined time period in response to the power transmission;
stopping the power transmission for communication when the subscription request is not received within the predetermined time period;
transmitting power to a power receiver that has transmitted the subscription request, when the subscription request is received within the predetermined time period;
determining whether a power state report is received from the power receiver in response to the power transmission;
determining whether a leakage power value exceeds an allowable range, by using information included in the power state report, when the power state report is received from the power receiver; and
stopping the transmission of the power to the power receiver, when the leakage power value exceeds the allowable range.
1 Assignment
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Accused Products
Abstract
Methods and apparatus are provided for detecting a non-intended object of power reception by a power transmitter. Power transmission for communication is performed, when the load change is sensed that has a value greater than or equal to a predetermined threshold. It is determined whether a subscription request, for subscribing to a network is received within a predetermined time period. The power transmission for communication is stopped when the subscription request is not received within the predetermined time period. Power is transmitted to a power receiver that has transmitted the subscription request, when the subscription request is received within the predetermined time period. It is determined whether a leakage power value exceeds an allowable range, when the power state report is received from the power receiver. The transmission of the power to the power receiver is stopped, when the leakage power value exceeds the allowable range.
49 Citations
19 Claims
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1. A method for detecting a non-intended object of power reception by a power transmitter, the method comprising the steps of:
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determining whether a load change is sensed that has a value greater than or equal to a predetermined threshold; performing power transmission for communication, when the load change is sensed; determining whether a subscription request, for subscribing to a network for wirelessly transmitting power, is received within a predetermined time period in response to the power transmission; stopping the power transmission for communication when the subscription request is not received within the predetermined time period; transmitting power to a power receiver that has transmitted the subscription request, when the subscription request is received within the predetermined time period; determining whether a power state report is received from the power receiver in response to the power transmission; determining whether a leakage power value exceeds an allowable range, by using information included in the power state report, when the power state report is received from the power receiver; and stopping the transmission of the power to the power receiver, when the leakage power value exceeds the allowable range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A power transmitter for detecting a non-intended object of power reception, the power transmitter comprising:
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a communication unit for performing wireless communication; a power supply unit for supplying power so as to generate a resonance frequency signal determined by a controller; a voltage/current measurement unit for measuring a voltage and a current of a signal generated by the power supply unit; a resonance signal generator for transmitting the power delivered by the power supply unit to one or more power receivers; and the controller for determining whether the voltage/current measurement unit senses a load change that has a value greater than or equal to a predetermined threshold, controlling the resonance signal generator to perform power transmission for communication when the voltage/current measurement unit senses the load change, determining whether a subscription request, for subscribing to a network for wirelessly transmitting power, is received within a predetermined time period in response to the power transmission, stopping the power transmission for communication when the subscription request is not received within the predetermined time period, performing a control operation so as to transmit power to the power receiver that has transmitted the subscription request when the subscription request is received within the predetermined time period, determining whether a power state report is received form the power receiver in response to the power transmission, determining whether a leakage power value exceeds an allowable range by using information included in the power state report when the power state report is received from the power receiver, and performing a control operation so as to stop the transmission of the power to the power receiver when the leakage power value exceeds the allowable range. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification