LCD DC／DC Convertor Circuit

Published:2011/7/8 1:10:00 Author:Joyce | Keyword: LCD, DC／DC, Convertor | From:SeekIC

AOC LM729 LCD DC／DC convertor circuit is as shown in the following figure. As we can see from the graph, the DC/DC converter is quite simple. Its working process is shown as follows: A + 5 V voltage provided by switching power supply circuit will output a 3.3 V voltage through foot 2 of LDO stabilizer U8 (AIC1084-33 CE) after being stabilized by it. The output mainly supplies power for the driver board, the LCD panel and ect; A + 5 V voltage provided by switching power supply circuit will output a 2.5 V voltage through foot 2 of LDO stabilizer U9 (AIC1084-25 CE) after being stabilized by it. The output mainly supplies power for the driver board circuit.



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