PSU from a PC - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Chip Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Chip Amps Amplifiers based on integrated circuits

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
Thread Tools Search this Thread
Old 6th August 2003, 08:56 PM   #11
diyAudio Member
Join Date: Aug 2003
Location: Lexington, SC
Send a message via AIM to hyperviper
  Reply With Quote
Old 7th August 2003, 04:43 AM   #12
diyAudio Moderator
TonyTecson's Avatar
Join Date: May 2003
Location: Palatiw, Pasig City
QUOTE]How are transformers in the computer PSUs? usable?[/QUOTE]
the +12/5volts and the -12/5volts are all taken from a single transformer inside the pc psu, an at psu will have a main chopper transformer and a small driver transformer feeding the bases of the transistor switches in a half bridge configuration., an atx psu will have another transformer to supply the 5volts standby voltage Vsb. It is the chopper transformer feeding the 5/12 volts rectifiers that we are after....

i've pulled enough computer power supplies apart to know that it's unlikely you'll find a transformer/toroidal inside worth using for an amp
true again without modification, but still you can get qet least 24volts out of a pc psu by modding the -12volts rectifiers to have equal amp rating as that of the +12volt rails......[
planet10 needs your help: Let's help Ruth and Dave...[B
  Reply With Quote


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

New To Site? Need Help?

All times are GMT. The time now is 03:14 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2