Linear Supply Help - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

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 27th March 2006, 06:00 PM   #1
Deltat is offline Deltat  United States
diyAudio Member
Join Date: Oct 2004
Location: St. Louis, MO
Send a message via AIM to Deltat Send a message via MSN to Deltat Send a message via Yahoo to Deltat
Default Linear Supply Help

I have a couple questions about designing a good linear power supply for class T based subwoofer amp. Im using a TK2350 eval board and i would like to be able to output about 500W. I have a 625VA toriodal xformer with 2 35V secondaries. Im having a couple problems. How can i control inrush current? When i turn this guy on lights dim, and in my office my UPS will even beep. I realize at the instant its turned on those caps appear as a dead short(ideally). Also it seems to be noisy, jsut having a signal from a function generator tied directly to an o-scope you can see it get pretty nasty when my powersupply is on. Lastly, how do i correctly give the supply a discharge path when off?

I have attached my schematic below of what im thinking of redesigning too, the only real difference is the .1uF and fuses before the rectifier as well as the relays at the output(hoping the delay will remove any turn on pop in the amp.

Attached Images
File Type: jpg linear supply.jpg (28.5 KB, 113 views)
  Reply With Quote
Old 27th March 2006, 07:10 PM   #2
Electrons are yellow and more is better!
diyAudio Member
peranders's Avatar
Join Date: Apr 2002
Location: Göteborg, Sweden
Blog Entries: 4
Here are two good threads.
Inrush Current killing fuses
Setting the relay time on softstart
/Per-Anders (my first name) or P-A as my friends call me
PA03 LM4780 amplifier group buy, SIGN UP HERE for the group buy 0 boards left. 118 paid.
  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

Similar Threads
Thread Thread Starter Forum Replies Last Post
linear pc power supply? cowanrg Power Supplies 45 20th July 2012 02:49 PM
Can you run a computer on a linear power supply? JZatopa Digital Line Level 11 17th June 2009 06:29 PM
Regulated Linear 5V ~1A supply percy Parts 4 22nd April 2009 09:00 AM
Which capacitors to use (linear supply) Jason Hubbard Power Supplies 4 29th December 2006 01:51 PM
60 V 5A linear power supply duffman Solid State 2 29th October 2005 07:20 AM

New To Site? Need Help?

All times are GMT. The time now is 06:01 AM.

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