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

PC PSU running a LM1876 on Soundcard
PC PSU running a LM1876 on Soundcard
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 19th October 2011, 02:41 AM   #1
dmx2020 is offline dmx2020  New Zealand
diyAudio Member
Join Date: May 2005
Location: auckland
Default PC PSU running a LM1876 on Soundcard

Hi to all,

This soundcard is an old (~1998) Ensonic AudioPCI E1370.

It is powered from the +12V (10A) and -12V lines (1A) of the PC PSU.

Looking at the datasheet for the LM1876, here, the LM1876 can only give ~8W at +/-12V.

So what can be done to increase power output from the LM1876:

1) Can the +5V and +12V, and -5V and -12V be joined to to give +/-17V? will the low current of the -5v be a problem?

2) Change rectifiers of -12V line to give higher current to match the +12V line? Will this make any difference, since the LM1876 will still draw essentially the same current at -/+12V?

3) Can you combine +5V and -12v, and -5V and +12V to give +/-17V?

4) Can anything else be done to increase the voltage from the PSU above +/- 12v? (mess with pin 1 of the tl494 pwm regualtor IC. etc?)

  Reply With Quote


PC PSU running a LM1876 on SoundcardHide 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
xlr to pc-soundcard MrAmp Analog Line Level 0 10th August 2011 09:08 PM
Best PC Laptops for running test tools -Clio , PC Scopes etc. ? Hearinspace Multi-Way 12 12th August 2008 12:54 PM
Active XO using PC soundcard? mr_push_pull Multi-Way 9 1st December 2005 07:31 PM

New To Site? Need Help?

All times are GMT. The time now is 09:04 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio