Home     Contact     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science     RSS     Terms of services     Privacy policy  
   
 Home     Forum     Projects     Experiments     Circuits     Theory     BLOG     PIC Tutorials     Time for Science   

Author Topic: Led Laptop Screen power supply????  (Read 2846 times)

0 Members and 1 Guest are viewing this topic.

thanosgen

  • Guest
Led Laptop Screen power supply????
« 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

cheerio

  • Sr. Member
  • ****
  • Posts: 306
Re: Led Laptop Screen power supply????
« Reply #1 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.

George

  • Jr. Member
  • **
  • Posts: 73
Re: Led Laptop Screen power supply????
« Reply #2 on: September 13, 2012, 13:24:37 PM »
lcdparts sell the stuff, send them an email with your questions