Analysis of Multi-Level Energy Recovery Sustaining Driver for AC PDP

A new multi-level type energy recovery sustaining driver for AC PDPs(Plasma Display Panels) is proposed and analyzed in this paper. The multi-level driver has been developed to reduce the voltage stress on switching elements. Comparing the proposed driver with conventional multi-level drivers, the number of switching elements, diodes, and auxiliary capacitors is reduced in the viewpoint of circuit structure. Moreover, the voltage stress on switching elements is more reduced and the sustain period is extended. To verify the validity of the proposed energy recovery circuit, computer simulations using PSpice program are carried out.