Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

I need computer power supply Schematic using TL494
I need computer power supply Schematic using TL494
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 12th September 2007, 05:03 AM   #1
dhanukak is offline dhanukak  Sri Lanka
diyAudio Member
 
Join Date: Sep 2007
Default I need computer power supply Schematic using TL494

Hi All
Im want to convert 12V/5V PC power supply to 13.8V /10A output.Som if any any one has complete schematic diagram of PC power supply using TL494 pwm IC,then pls up load that.
Redards
Dhanuka
  Reply With Quote
Old 12th September 2007, 08:50 AM   #2
guitar_joe is offline guitar_joe  Australia
diyAudio Member
 
Join Date: May 2007
Send a message via MSN to guitar_joe
http://www.pavouk.org/hw/en_atxps.html

heres one of many.

There are probably many designs out there, for what i've seen i'd say you would be looking at half - bridge with bjt power devices.

If u have a good understanding of how the supply works i'm sure you wont have too many technical difficulties as it doesnt require much re-engineering.

I've had quite an amount of fun taking the transformers apart lol, i've been there. Just dont shatter the core getting it out of the bobbin lol.

Btw these cores are good for home brew supplies too, whenever a pc supply breaks i salvage it.

Have fun, find a good article (eg silicon chip have a feature on this) and dont blow urself up! lol
  Reply With Quote
Old 12th September 2007, 02:14 PM   #3
m-tech is offline m-tech  Serbia
diyAudio Member
 
Join Date: Feb 2006
Location: Belgrade
You need something like this: http://www.qrp4u.de/docs/en/powersupply/
  Reply With Quote
Old 13th September 2007, 01:49 AM   #4
ifrythings is offline ifrythings  Canada
diyAudio Member
 
ifrythings's Avatar
 
Join Date: Oct 2005
Here's a schematic I modified because I have 3-4 of them units..

http://members.shaw.ca/tall_dude80/atxpsmod.PNG
  Reply With Quote
Old 13th September 2007, 02:28 AM   #5
N-Channel is offline N-Channel  United States
diyAudio Member
 
N-Channel's Avatar
 
Join Date: Mar 2003
Location: Sol System
Send a message via AIM to N-Channel
dhanukak,

Here are some threads on AT/ATX Modification of three varieties:

1) +12V input
2) +12V-only output (really, +13.8V)
3) (+/-) Vouts for audio applications.

http://www.diyaudio.com/forums/showt...4310&highlight
http://www.diyaudio.com/forums/showt...479&highlight=
http://www.diyaudio.com/forums/showt...764&highlight=
http://www.diyaudio.com/forums/showt...615&highlight=
http://www.diyaudio.com/forums/showt...932&highlight=
http://www.diyaudio.com/forums/showt...374&highlight=
http://www.diyaudio.com/forums/showt...405&highlight=
http://www.diyaudio.com/forums/showt...497&highlight=

Hope this helps,

Steve
__________________
-. ---.. -..- ---
  Reply With Quote
Old 13th September 2007, 04:12 AM   #6
dhanukak is offline dhanukak  Sri Lanka
diyAudio Member
 
Join Date: Sep 2007
Thumbs up Thanking you

Hello Guys,
Thanks for for earlist reply.Im new guy for this form.I checked all the links .Thats very useful to mee.
Thanking you
Dhanuka
  Reply With Quote

Reply


I need computer power supply Schematic using TL494Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
computer power supply? bostonswoop Chip Amps 29 25th April 2009 03:57 AM
Can i use a computer power supply to power audio amplifiers? destroyer X Solid State 91 25th September 2006 04:36 AM
computer power supply rev_psilocybe Chip Amps 12 6th May 2005 06:21 PM


New To Site? Need Help?

All times are GMT. The time now is 08:38 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki