Abstract
This paper presents an efficient power-factor correction (PFC) scheme
for plasma display panels (PDPs) to reduce harmonic
currents and power consumption. A high-efficiency interleaved boost converter
is proposed, which can reduce the conduction losses and diode reverse-recovery
problems in the continuous-conduction-mode operation. A zero-current switching
(ZCS) condition is obtained to solve the reverse-recovery problems of the
output diodes. In addition, a control strategy is suggested for the use of
the proposed converter in a practical design. A high power factor can be achieved
without sensing the input voltage. The analysis of the proposed converter
and its design considerations are presented in detail. The experimental results
based on a 600-W prototype are discussed to evaluate the proposed converter
for a PFC circuit in a 50-in PDP power supply unit.
© 2007 IEEE
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