2단 에너지 회수 회로를 이용한 AC PDP의 방전 효율 개선 방안
- 2단 에너지 회수 회로를 이용한 AC PDP의 방전 효율 개선 방안
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- This thesis proposes a method of improving luminous efficiency (EL) of plasma display panel. The proposed method uses a 2-step energy recovery (ER) circuit which includes two different ER paths (ER 1 and ER 2). Each ER path has a resonant inductor. The resonant inductor for ER 1 path disperses resonant current to decrease reactive power, while that for ER 2 path supports initial discharge current and decreases effective power. The proposed circuit uses a voltage regulator to maintain the voltage of the ER capacitors and to maximize the ER current for discharge. The circuit was tested on a 50-inch FHD (1920×1080) single-scan AC PDP. Compared to the Weber ER circuit, total current supplied through ER paths increased by 4.5 % and power consumption decreased by 10 %. As a result, EL increased by 9.14 % for a 4%-window pattern.
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