Induction heating and wireless power transferring device having improved target object detection algorithm

An induction heating and wireless power transferring device comprising:

• a first working coil unit that includes a first working coil and a second working coil that are coupled in parallel;
• a rectification unit that is configured to rectify alternating current (AC) power supplied from a power supply unit to direct current (DC) power;
• a first inverter unit that is configured to (i) receive the DC power from the rectification unit, (ii) convert the DC power into resonant current, and (iii) apply the converted resonant current to at least one of the first working coil or the second working coil;
• a first switch that is coupled to the first working coil and that is configured to turn on or off the first working coil;
• a second switch that is coupled to the second working coil and that is configured to turn on or off the second working coil;
• and
• a control unit that is configured to control at least one of the first inverter unit, the first switch, or the second switch to detect whether a target object is located on the first working coil or the second working coil.