Abstract
A cost-effective and high-efficiency driver is proposed
for plasma display panels (PDPs) by eliminating switching devices with high
current ratings. The proposed driver is based on a neutral -point
clamped inverter structure, and the path switches can be eliminated without
reducing the flexibility in designing driving waveforms. Moreover, the LC
resonant operation during the sustain period can be constructed with only
unidirectional diodes in aid of the switching scan IC devices. Thus, the proposed
driver can produce a PDP driving waveform with no path switches as well as
no resonant switches. Since the path switches and the resonant switches are
practically implemented with several semiconductor devices in parallel due
to high gas-discharge and capacitor displacement current, the proposed driver
can considerably simplify the overall driver with fewer semiconductor devices.
Additionally, high conduction losses from the path switches and the resonant
switches with high current loading can be eliminated in the proposed driver,
leading to higher efficiency. The developed driver also places the clamping
diodes to recover the inductive energy trapped in the resonant inductors due
to the inevitable diode reverse-recovery phenomena.
© 2013 IEEE
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