摘要: A LCD (liquid crystal display) has the CCFL (cold cathode fluorescent lamp) for backlight illumination. The is fed at high voltage and frequency by an inverter in TVs. unit consumes almost %40 of input power. with step-up transformer this commonly supplied from switch mode power supply. In work, a parallel resonance without used to eliminate loss. circuit analyzed PSPICE package program results are compared implementation.
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