METHOD AND POWER TRANSMITTER FOR CONTROLLING POWER TRANSMISSION AGAINST OVERVOLTAGE AT POWER RECEIVER
First Claim
1. A method of controlling power transmission in a power transmitter against overvoltage at a power receiver, the method comprising the steps of:
- receiving, at the power transmitter, a subscription request to subscribe to a wireless power network, from the power receiver;
determining whether power transmission is available for the power receiver;
informing the power receiver that the power transmission is beginning, when the power transmission is available;
increasing and transmitting the transmission power;
determining whether a stop request to stop increasing voltage is received at the power transmitter from the power receiver;
stopping the increase of the transmission power when the stop request is received at the power transmitter; and
starting charging of the power receiver by transmitting a start charging command from the power transmitter to the power receiver.
1 Assignment
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Accused Products
Abstract
Methods and apparatus are provided for controlling power transmission in a power transmitter against overvoltage at a power receiver. The power transmitter receives a subscription request to subscribe to a wireless power network, from the power receiver. It is determined whether power transmission is available for the power receiver. The power receiver is informed that the power transmission is beginning, when the power transmission is available. The transmission power is increased and transmitted. It is determined whether a stop request to stop increasing voltage is received at the power transmitter from the power receiver. The increase of the transmission power is stopped when the stop request is received at the power transmitter. Charging of the power receiver is started by transmitting a start charging command from the power transmitter to the power receiver.
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Citations
20 Claims
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1. A method of controlling power transmission in a power transmitter against overvoltage at a power receiver, the method comprising the steps of:
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receiving, at the power transmitter, a subscription request to subscribe to a wireless power network, from the power receiver; determining whether power transmission is available for the power receiver; informing the power receiver that the power transmission is beginning, when the power transmission is available; increasing and transmitting the transmission power; determining whether a stop request to stop increasing voltage is received at the power transmitter from the power receiver; stopping the increase of the transmission power when the stop request is received at the power transmitter; and starting charging of the power receiver by transmitting a start charging command from the power transmitter to the power receiver. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A power transmitter for controlling power transmission against overvoltage at a power receiver, the power transmitter comprising:
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a wireless communication unit for receiving a subscription request to subscribe to a wireless power network from the power receiver; a resonant signal generator for supplying transmission power to the power receiver under control of the controller; and a controller for determining whether power transmission is available for the power receiver, informing the power receiver through the wireless communication unit that power transmission is beginning when the power transmission is available, increasing and transmitting the transmission power using the resonant signal generator, determining whether a stop request to stop increasing voltage is received from the power receiver through the wireless communication unit, stopping the increase of the transmission power when the stop request is received, and starting charging of the power receiver by transmitting a start charging command to the power receiver through the wireless communication unit. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification