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