POWER CONTROL METHOD FOR CONSIDERING SITUATION OF WIRELESS POWER RECEIVER IN WIRELESS POWER TRANSMITTER AND THE WIRELESS POWER TRANSMITTER THEREOF

摘要

The present invention proposes a method for preventing a voltage surplus state of a power receiver in transmitting power required by a power receiver at the beginning of a charging phase. To this end, if there is a subscription request from a power receiver to join a wireless power network controlled by a power transmitter, it is determined whether power transmission to the power receiver is possible based on power information of the power receiver, If it is possible, informs the power receiver of the start of the staged power transmission, and then increases and transmits the transmission power value until the stop request for the voltage increase is received from the power receiver, and when the stop request for the voltage increase is received And stopping the increase of the transmission power value and then starting charging by transmitting a charging start command. This has the effect of preventing the overvoltage situation in transmitting the power required by the power receiver at the beginning of the charging phase.