Patent ID: 7193586

Claim:
An apparatus for driving a plasma display panel, which has a panel capacitor, the apparatus comprising: a first driving section including first and second switches which are coupled in series between a first power source for supplying a first voltage and a first terminal of the panel capacitor, and third and fourth switches which are coupled in series between the first terminal of the panel capacitor and a second power source for supplying a second voltage; and a first clamping section including a fifth switch and a sixth switch, wherein a first terminal of the fifth switch is directly connected to a node between the first switch and the second switch, a second terminal of the fifth switch is coupled with a third power source for supplying a third voltage, a first terminal of the sixth switch is directly connected to a node between the third switch and the fourth switch, and a second terminal of the sixth switch is coupled with the third power source, and wherein a voltage difference between the first voltage and the second voltage is a sustain voltage.