Patent ID: 6995521

Claim:
A drive circuit of a plasma display panel having scan electrodes and sustain electrodes that realizes display by discharge that is generated by shifting potential between said scan electrodes and said sustain electrodes, comprising: a first sustain driver circuit for both controlling potential on said scan electrode side and effecting control such that, when said scan electrode side is at the power-supply potential, this potential is used to raise the potential of said sustain electrode side; a second sustain driver circuit for both controlling potential on said sustain electrode side and effecting control such that, when said sustain electrode side is at the power-supply potential, this potential is used to raise the potential of said scan electrode side; a control circuit that controls the operation of said first and second sustain driver circuits to repeat shifting of the potential between said scan electrodes and said sustain electrodes; and a junction means for connecting said first sustain driver circuit and said second sustain driver circuit, wherein said first sustain driver circuit comprises: a first switching element for clamping said scan electrodes to the power-supply potential; a second switching element for clamping said scan electrodes to the ground potential; a third switching element for both lowering the potential of said scan electrode side and raising the potential of said sustain electrode side by causing current to flow from said first sustain driver circuit to said second sustain driver circuit when said scan electrode side is at the power-supply potential; and a first coil that is connected between said third switching element and said second sustain driver circuit; and wherein said second sustain driver circuit comprises: a fourth switching element for clamping said sustain electrodes to the power-supply potential; a fifth switching element for clamping said sustain electrodes to the ground potential; a sixth switching element for both lowering the potential of said sustain electrode side and raising the potential of said scan electrode side by causing a current to flow from said second sustain driver circuit to said first sustain driver circuit when said sustain electrode side is at the power-supply potential; and a second coil that is connected between said sixth switching element and said first sustain driver circuit.