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CCFL backlight half-bridge topology based on L6574 and STD7NS20

A 12V or 24V DC voltage is provided for the backlighting inverter to drive the CCFL. To improve the efficiency and performance of the total system both for the AC/DC power supply and inverter, STMicroelectronics has introduced a high-voltage ballast-driver IC L6574 that provides the half-bridge solution for CCFL backlighting.

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