Lamp driving circuit, inverter board and display apparatus...

Details Lamp driving circuit, inverter board and display apparatus... Lamp driving circuit, inverter board and display apparatus...

2008-02-12

2010-06-01

Vu, David Hung (Department: 2821)

Electric lamp and discharge devices: systems

Current and/or voltage regulation

C315S307000, C315S2090SC

Reexamination Certificate

active

07728531

ABSTRACT:
A lamp driving circuit, an inverter board and a display apparatus having the inverter board, the lamp driving circuit receiving a direct current voltage and provides the direct current voltage to a square wave generator, and the square wave generator outputting a first square wave voltage having a duty ratio corresponding to a voltage level of the direct current voltage. An inverter controller compares the first square wave voltage with a reference voltage and outputs a second square wave voltage. An inverter provides an output of a lamp driving voltage according to the duty ratio of the second square wave voltage.

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English Language Abstract (International Publication No. WO 02/103665), Korean Publication No. 2003-0027024, Apr. 3, 2003.

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