WIRELESS POWER TRANSMITTER AND RECEIVER FOR FREE POSITIONING CHARGING OF MULTIPLE DEVICES

摘要

According to an embodiment of the present invention, a wireless power transmitter includes: a main coil unit which forms a charging area for wireless power transmission to at least one reception coil; a transmission coil unit forming an equalized coil unit which equalizes mutual inductance in the charging area so as for mutual inductance with at least one reception coil to be within a predetermined range in the charging area; and an impedance matching unit which transfers power from a source to the transmission coil.