2600w Smps - Page 3 - diyAudio
Go Back   Home > Forums > Amplifiers > Power Supplies

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 13th March 2008, 07:48 PM   #21
diyAudio Member
 
Join Date: Mar 2008
HI,
those transformers from the picture seems to look like those from computer power supply .
In fact most of the computer power supply are rated at 450w peak ,and a maximum of 250w .

In that picture are 8 transformers (8x250w=2000w).





---------------------------------------------------------------
sorry for my english
  Reply With Quote
Old 13th March 2008, 07:52 PM   #22
diyAudio Member
 
Join Date: Mar 2008
I wont to built my smps with only one transformer and these because i want to minimize the space ....
  Reply With Quote
Old 14th March 2008, 04:52 PM   #23
diyAudio Member
 
N-Channel's Avatar
 
Join Date: Mar 2003
Location: Sol System
Send a message via AIM to N-Channel
....then you'll need a really big core......
__________________
-. ---.. -..- ---
  Reply With Quote
Old 14th March 2008, 10:54 PM   #24
diyAudio Member
 
Join Date: Nov 2004
Location: Florida
Quote:
Originally posted by dexter2003
I wont to built my smps with only one transformer and these because i want to minimize the space ....
WOW!!! 2.6kW from one toroid!

Are you going to use a really ligh frequency and low primary turn count to make such power?

To get really big toroid cores:
http://www.cwsbytemark.com/prices/corepwr.php
(scroll to bottom)

They have a 5 inch, and also a 4 inch double height core, along with other sizes. Maybe if you use a LOT of THICK coil wire, and a HUGE core, you could make these work.
  Reply With Quote
Old 14th March 2008, 11:17 PM   #25
diyAudio Member
 
Join Date: Mar 2008
HI
EWorkshop1708
YES ,for this smps I will use an etd59...here is a picture http://www.metrafo.ro/poza_428044.html
THE core is not very expensive they only cost about 6$ each ,for the imput capacitor bank i will use 4X460uf/420v ,and 4xirf450 these all will cost about 50usd and many else small components ...very cheap .
The only big problem is the pcb.
I'm learning the orcad cadence now ...
  Reply With Quote
Old 16th March 2008, 06:01 PM   #26
diyAudio Member
 
Join Date: May 2005
Location: Avesnes/Helpe
Hi,
4*460F for input capacitor bank is not enough for such a power (2600W), input voltage ripple will be very large !

in my half bridge project
2*1800F/200V in series for 25V ripple voltage at the input @700W
  Reply With Quote
Old 16th March 2008, 06:13 PM   #27
diyAudio Member
 
Join Date: Mar 2008
Hi ,
Alexclaire
those 2*1800uf/200v will give you just 900uf ...I will have 1840uf at 320v ,and my amplifier has 2000w ,but I will newer use even 1600w.
The smps ,in the worst case will deliver 2000w ...
  Reply With Quote
Old 16th March 2008, 11:31 PM   #28
diyAudio Member
 
Join Date: Nov 2004
Location: Florida
Quote:
Originally posted by dexter2003
Hi ,
Alexclaire
those 2*1800uf/200v will give you just 900uf ...I will have 1840uf at 320v ,and my amplifier has 2000w ,but I will newer use even 1600w.
The smps ,in the worst case will deliver 2000w ...
Nice!!!

Do you think it's better to run Amplifier from SMPS from Mains AC instead of 60hz transformer? I'm wanting to build one for a sound system because it's all 4 ohm and needs high current. I also don't like AC hum that can come out of the speakers at 60 hz. What kind of PWR transistors do you use at that side of the SMPS? I tried 350V MJL4281/4302 and blew them up.
  Reply With Quote
Old 17th March 2008, 12:00 AM   #29
diyAudio Member
 
Join Date: Mar 2008
HI,
you should use transistors with a minimum 450v ...
I hope this week I gonna finish the pcb layout (the school program stops me ) ,and I will post picture with it ,and maybe with the smps.
  Reply With Quote
Old 27th March 2008, 01:32 PM   #30
diyAudio Member
 
Join Date: Mar 2008
IF anyone knows something about smps please post here please....
  Reply With Quote

Reply


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
SMPS for B+ from PC PS jkeny Tubes / Valves 12 15th May 2014 05:13 PM
Smps a2005r2003 Power Supplies 19 11th August 2011 06:19 AM
Smps Juani_12-5 Car Audio 8 20th January 2007 09:15 AM
Smps rinox Power Supplies 0 2nd September 2005 10:05 PM
Need help on car SMPS DFI Car Audio 16 18th June 2004 05:59 AM


New To Site? Need Help?

All times are GMT. The time now is 06:12 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2