Lamp drive circuit for driving a number of lamps and...

Electric lamp and discharge devices: systems – Pulsating or a.c. supply – Transformer in the supply circuit

Reexamination Certificate

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C315S274000, C315S291000, C315S307000, C315S312000

Reexamination Certificate

active

07990071

ABSTRACT:
A lamp drive circuit used for driving a number of lamps is provided. The lamps are used in a backlight module. The backlight module is used for providing a light source when a liquid crystal display displays. The lamps are respectively electrically connected to a coil. The coils have the same number of turns and have the same magnetic circuit, so that the currents flowing through the lamps are balanced.

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patent: 2003-031383 (2003-01-01), None

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