Plasma display apparatus and method of driving the same

A plasma display apparatus comprising:

• a plasma display panel including a first electrode, a second electrode, and a third electrode positioned in an intersection direction of the first electrode and the second electrode;
• a single sustain driver that alternately supplies a first pulse of a positive polarity direction and a second pulse of a negative polarity direction to the first electrode during a sustain period, an absolute value of a voltage of the first pulse being different from an absolute value of a voltage of the second pulse;
• an address driver that supplies a third pulse of a positive polarity direction to the third electrode during the supply of the first pulse;
• and
• a ground separation controller that switches on or off between a first ground voltage source connected to the single sustain driver and a second ground voltage source connected to the address driver, and controls the supply of the third pulse to the third electrode during the supply of the first pulse and the supply of a fourth pulse having a sum of a voltage magnitude of the third pulse and a voltage magnitude of the second pulse to the third electrode during the supply of the second pulse.