Electrostatic induction device for performing power generating function

An electronic device comprising:

• an electrostatic induction device including:
• at least one first element configured to include a first electrode, a second electrode electrically connected to the first electrode, and a third electrode electrically connected to the first electrode and the second electrode;
• at least one second element configured to include a charged area having been charged with positive charges or negative charges and move while adjacent to the first element so as to cause an electrostatic induction action with the first element;
• a third element configured to be electrically connected to the first element, receive, from the first element, a first electric current generated between the first electrode and the second electrode, a second electric current generated between the first electrode and the third electrode, and a third electric current generated between the second electrode and the third electrode, by the movement of the second element having been charged with the positive charges or the negative charges, and rectify the received first electric current, second electric current, and third electric current;
• a processor configured to identify at least one of a direction and a displacement of the movement of the second element on the basis of output signals corresponding to the electric currents, and generate information on at least one of the direction and the displacement of the movement of the second element;
• and
• a controller configured to control at least one of direction information and displacement information of the movement of the second element to be transmitted to an external electronic device through a communication module,
• wherein the processor is configured to identify a moving direction of the electrostatic induction device based on an output signal corresponding to the second electric current and an output signal corresponding to the third electric current, when an output signal corresponding to the first electric current is a rising edge or a falling edge, and
• wherein a charged area of the second element is an entire area of the second element, and is configured to be larger than an upper end surface or a lower end surface of the first electrode, the second electrode or the third electrode.