Energy Recovery Circuit with Auxiliary Power Supply for AC Plasma Display Panel

A new energy recovery circuit with an auxiliary power supply for AC plasma display panel is proposed, which can provide zero-voltage switching of all switches by rejecting the surge current when sustain switches are turned on. The operation process of the circuit is analyzed, and the results of experiments based on a 12-in PDP panel with 100 kHz sustaining frequency show that the proposed circuit could reduce power losses of energy recovery circuit of AC plasma display panel.