Patent ID: 8405578

Claim:
A plasma display device, comprising: a panel capacitor formed by a first electrode and a second electrode, and the panel capacitor performing sustain discharge; a first transistor connected between a first power supply supplying first voltage and the first electrode; a second transistor connected between a second power supply supplying second voltage lower than the first voltage and the first electrode, a third transistor connected between the first power supply and the second electrode; a fourth transistor connected between the second power supply and the second electrode; a transformer comprising a primary coil whose first terminal is connected to an input power supply and second terminal is connected to a ground terminal and a secondary coil whose first terminal is connected to the first electrode and second terminal is connected to the second electrode; a first diode connected between the second terminal of the secondary coil and the first power supply; and a second diode connected between the second terminal of the secondary coil and the second power supply.