SOFTWARE SOLUTION

For Technician Help We Collected Different Mainboard Working Voltages Data Thank you Very Much for the Data send us more like that at lcdledebooks@gmail.com  LED TV Power Supply Schematic Guide CV338H-A50  KDL 32NX650 UA24H4100 UA32F4100AR UA40N5300  LA40B530 Sharp LC 40LE185M Sony KDL 43W950 TP.V56.PB816 LG 22LB452 Philco LED TV Firmware  Available IMRAN ASHRAF   +923139292880  https://electronics-tricks.blogspot.com Youtube Channel:   https://www.youtube.com/user/imran03452164785/videos?view_as=subscriber Facebook Page:  https://www.facebook.com/profile.php?id=100044482969994

Technicain of Pakistan  

VGH, VGL, VCOM, and AVDD voltage for TFT LCD Most of the large TFT LCD panels out there require several bias and logic voltage levels to drive them, such as VGH, VGL, VCOM, AVDD, DVDD, etc. If the TFT display already has a driver board attached, it will most likely already have the means to product all these signals. But if you are using a display that only has a flat flex cable and needs you to supply these different voltage levels, you have no choice but to generate them in your circuit and provide the voltage levels. What is tricky is keeping the cost of the design low. It is not at all efficient to use multiple boost converters to generate all these voltage levels. Also, making discrete transistor based boost converters can cause noise, flicker and sub-optimal performance of the display.   In this article, we provide a schematic to generate common VGH, VGL, VCOM, and AVDD rails from a single input voltage. Common VGH, VGL, VCOM and AVDD voltage levels TFT LCD panels al...

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