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A cold-cathode fluorescent lamp driver circuit with synchronous primary-side dimming control

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5 Author(s)
Mu-Shen Lin ; Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan ; Wen-Jung Ho ; Fu-Yuan Shih ; Chen, D.Y.
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A novel synchronous primary-side dimming control scheme is proposed and tested for a cold-cathode fluorescent lamp (CCFL) driver circuit for liquid crystal display (LCD) backlight illumination display applications. This new control scheme features high efficiency, even-dimming sensitive adjustment, even-brightness control for a two-lamp system, less lamp flickering problems, stable feedback control and simplicity. An analysis of the circuit is given, from which a design example is presented

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:45 ,  Issue: 2 )

Date of Publication:

Apr 1998

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