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Author Topic: Backlight from LCD monitor: may I use it with Arduino ?  (Read 711 times)
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unprobable country named Belgium
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Hello,

I got this narrow double tube light which was used as backlight for an LCD monitor. I see no reference written on it. It's around 40 cm long. There is one plug for each tube (please see attached images).

May I use it with Arduino ? Should I add other components ? How ?

Thank you in advance.


* tube_global.jpg (119.05 KB, 876x657 - viewed 6 times.)

* tube_end.jpg (119.59 KB, 876x657 - viewed 7 times.)

* tube_plug.jpg (113.59 KB, 876x657 - viewed 8 times.)
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Leighton Buzzard, UK
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if it's anything like the (very similar looking) tubes in a scanner - it needs a very high voltage to start it
think flourescent tube!!
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So I would need a relay and an independant power source ? Any idea of the voltage/current needed ?
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Leighton Buzzard, UK
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easiest is to take an old laptop to pieces, or harvest from a scanner
from (rusty) memory - kV to strike, then just (!) 2-300 volts to maintain

do NOT connect to your Arduino!!!
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for this you need high voltage power inverter
you need something like this


* LCD-Backlight-Power-Inverter-for-HP-AS023172018-.jpg (10.71 KB, 400x300 - viewed 10 times.)
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Thanks guys ! It seems a bit complex to use this spare part. I think I'd better use regular leds...
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