METHOD FOR TRANSMITTING A SIGNAL OF WIRELESS POWER TRANSMITTING UNIT IN WIRELESS CHARGE SYSTEM, THE WIRELESS POWER TRANSMITTING UNIT, THE WIRELESS POWER RECEIVING UNIT

摘要

According to various embodiments of the present invention, a method for transmitting a signal of a wireless power transmitter in a wireless charging system comprises the following steps: transmitting a first signal; transmitting a second signal; detecting load change during a period of transmitting the second signal; and extending a transmission period of the second signal based on the detected load change.