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General Category => Maths, Geometry, Physics and others => Topic started by: thanosgen on September 11, 2012, 17:51:31 PM

Title: Led Laptop Screen power supply????
Post by: thanosgen on September 11, 2012, 17:51:31 PM
Hi, I want to make an inverter for a led screen. I have the leds from another LCD laptop screen and i need to take out my CCFL tube and place the LEDS.
I saw some videos in youtube but the problem is the power supply. How many power needs these LEDS to turn on???

This is an example but is too expensive for me:
http://store.lcdparts.net/LB20334LED7220MS254LEDCMS206CN_p_3679.html (http://store.lcdparts.net/LB20334LED7220MS254LEDCMS206CN_p_3679.html)
Title: Re: Led Laptop Screen power supply????
Post by: cheerio on September 13, 2012, 04:42:29 AM
You do not need an inverter. You need to know the pin out of the cable that connects your Mainboard and the current inverterboard. Usually the VCC is <30V. Now you put enough leds in series according to the VCC. If you need more, put identical series in parallel. If you need to dim you need additional stuff.
you should visit the led projects on pcb-heaven. they will help you much i guess.
Title: Re: Led Laptop Screen power supply????
Post by: George on September 13, 2012, 13:24:37 PM
lcdparts sell the stuff, send them an email with your questions