Patent ID: 7123219
Filing Date: 2006-10-17
Classification: G09G

Abstract:
1. A driving apparatus of a plasma display panel for applying a voltage to an electrode of a panel capacitor, comprising: an inductor having a first end and a second end, the first end coupled to the electrode of the panel capacitor; a first switch for causing current to flow into the panel capacitor through the inductor, the first switch coupled between the second end of the inductor and a first power source to supply a first voltage; a second switch for causing current to flow out of the panel capacitor through the inductor, the second switch coupled between the second end of the inductor and the first power source; a third switch for causing a second voltage to be applied to the electrode of the panel capacitor after the panel capacitor is charged, the third switch coupled between the electrode of the panel capacitor and a second power source to supply the second voltage; a fourth switch for causing a third voltage to be applied to the electrode of the panel capacitor after the panel capacitor is discharged, the fourth switch coupled between the electrode of the panel capacitor and a third power source to supply the third voltage; a first diode for clamping such that a voltage over the second voltage is not applied to the electrode of the panel capacitor, the first diode having an anode coupled to a first end of the second switch and a cathode coupled to the second power source; and a first filter for removing high frequency components, the first filter coupled between the first end of the second switch and the second end of the inductor.