Patent ID: 7274343
Filing Date: 2007-09-25
Classification: G09G

Abstract:
1. An apparatus for driving a plasma display panel, which applies a voltage to a panel capacitor that is coupled on a conductive pattern formed lengthwise, the apparatus comprising: an inductor coupled to one terminal of the conductive pattern; a first switch and a second switch coupled to the inductor, and operated to charge and discharge the panel capacitor to a first voltage and a second voltage, respectively; a third switch coupled between an other terminal of the conductive pattern and a first power source for supplying the first voltage, and operated to generate a current of a first direction flowing to the conductive pattern and the inductor; a fourth switch coupled between the other terminal of the conductive pattern and a second power source for supplying the second voltage, and operated to generate a current of a second direction flowing to the inductor and the conductive pattern, the second direction being opposite to the first direction; and a power line coupled to the first switch and the second switch and supplying a third voltage having a value between the first voltage and the second voltage, wherein the panel capacitor is discharged to the second voltage by a resonance between the inductor and the panel capacitor while the current of the first direction is flowing, and the panel capacitor is charged to the first voltage by a resonance between the inductor and the panel capacitor while the current of the second direction is flowing.