Patent ID: 7006057

Claim:
A scan electrode driving apparatus for a plasma display panel (PDP) including a plurality of address electrodes and a plurality of scan electrodes and sustain electrodes alternately arranged to form a pair with each other, and having a panel capacitor between the scan electrodes and the sustain electrodes, comprising: a power recovery unit that supplies power to apply waveforms for sustain-discharge, and recovers and reuses the power; a ramp waveform applier that supplies a reset pulse signal for resetting each discharge cell using the power received from the power recovery unit during a reset period; and a scan pulse generator, wherein the scan pulse generator and the ramp waveform applier operate to supply a pulse signal for accumulating wall charges into addressed discharge cells during a scan period, wherein the ramp waveform applier separates a first current transmission path for transmitting the reset pulse signal from a second current transmission path for recovering the power from the panel capacitor.