Asymmetric current buildup sustainer for AC plasma display panel

A new driving method for a plasma display panel (PDP) is proposed. In the proposed driving circuit, an asymmetric current buildup technique increases the flexibility in the rising and falling times of the panel voltage, and reduces the peak and root mean square values of the inductor currents. Moreover, the switching stresses of the main sustain switches are reduced, while all the advantages of the conventional series-resonant method are maintained. The operation principle of the proposed circuit is presented in detail. A 42-in ac PDP equipped with the proposed driving method is investigated.