POWER TRANSMITTING METHOD AND POWER TRANSMITTER FOR COMMUNICATION WITH POWER RECEIVER
First Claim
1. A method of controlling power transmission for communication with at least one power receiver by a power transmitter, the method comprising:
- performing, when a predetermined measurement cycle arrives, a load measurement;
comparing a current load measurement value corresponding to the load measurement with a previous load measurement value;
determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold;
gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and
stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
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Accused Products
Abstract
A method and power transmitter for efficiently controlling power transmission to one or more power receivers in a wireless multi-power transmission system are provided. The method includes performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target.
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Citations
18 Claims
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1. A method of controlling power transmission for communication with at least one power receiver by a power transmitter, the method comprising:
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performing, when a predetermined measurement cycle arrives, a load measurement; comparing a current load measurement value corresponding to the load measurement with a previous load measurement value; determining whether the current load measurement value is increased over the previous load measurement value by at least as much as a first predetermined threshold; gradually increasing, when the load measurement value is increased over the previous load measurement value by at least as much as the first threshold, a transmission power value until a request for a subscription to a wireless multi-power transmission network from a power reception target within a predetermined time limit; and stopping, when the request for the subscription is not received before the time limit is exceeded, power transmission to the power reception target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A power transmitter for controlling power transmission for communication with at least one power receiver, the power transmitter comprising:
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a communication unit for performing wireless communication; a power supplier for supplying a power source to generate a resonance frequency signal determined by a controller; a voltage/current measurement unit for measuring a voltage and a current of the generated resonance frequency signal; a resonance signal generator for transmitting power transferred from the power supplier to at least one power receiver; and the controller for controlling transmission of power for communication through the resonance signal generator when the voltage/current measurement unit detects a load change at least equal to a predetermined threshold, gradually increasing a transmission power value until a request for a subscription to a wireless multi-power transmission network is received within a predetermined time limit, and stopping transmission of the power to a power reception target when the request for the subscription is not received before the time limit is exceeded. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification