ENERGY SUPPLY DEVICE

An energy supply device that supplies energy to an object. In an embodiment, the energy supply device may include at least one processor, and a plurality of coils connected to a resonant condenser for energy supply and an inverter circuit. In an embodiment, the at least one processor may determine a first coil from among a plurality of coils as a transmission coil and determine a second coil from among the plurality of coils as a reception coil. Further, the at least one processor may transmit a detection signal to the first coil, obtain an induction signal induced in the second coil through a reception circuit connected to the second coil, and detect the object on the energy supply device based on the obtained induction signal.