Go Back  

DIY Electric Car Forums > EV Conversions and Builds > Technical Discussion

Register Blogs FAQ Members List Social Groups Calendar Search Today's Posts Mark Forums Read

 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 05-21-2008, 06:21 AM
lazzer408's Avatar
lazzer408 lazzer408 is offline
Senior Member
 
Join Date: May 2008
Posts: 457
lazzer408 is on a distinguished road
Default Cheapest DC-DC converters. 250w $50, 450w $65, 650w $100 you say?

Ok guys. Check this out. I've been playing with a 250w Thermal Take Power Express power supply. What this thing is, is an add-on power supply for a PC computer that fit in a 5.25" CDrom bay and provides 250w @ 12v regulated to power SLI or Crossfire graphics cards. 2 cards. A slot cover plate mounts in the computer to provide a 120v ac-in jack for a boom-box type power cable. This supply is normally activated when the main PSU turns on but if you don't connect the interface cable to the computer psu's atx connector, then it will always be on. It will power up with DC right to the ac input but it's better if you have the ability to open it and put your pack voltage straight to the main filter cap -after- the line rectifier. I've ran HID headlights as low as 48v input on the cap. Normally this cap sees about 150v. That makes 48-150dc input and 12v out but I would de-rate the output with voltages below 100v.

It's also fan cooled and ISOLATED and I've just discovered they make a 450w and 650 watt version!!!

Typical internet prices:

250w (rated 21a max) ~$50
http://www.thermaltake.com/product/P...0130/w0130.asp


450w (rated 30a max) ~$65
http://www.thermaltake.com/product/P...0157/w0157.asp

650w rated 30a max?) ~100 <---- 30a? It's twice as big as the 250 and 450 and takes up 2 bays.
http://www.thermaltake.com/product/P...0158/w0158.asp


This should make you guys very happy!

http://www.amazon.com/s/ref=nb_ss_gw...+power+express

Last edited by lazzer408; 05-21-2008 at 06:30 AM.
Reply With Quote
Sponsored Links
 

Share or Bookmark this

Thread Tools
Display Modes

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

 

All times are GMT -6. The time now is 07:08 PM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Powered by NuWiki v1.3 Beta 5 Copyright ©2006-2007, NuHit, LLC
Zoints SEO v2.3.0 by Zoints & Computer-Logic.org
Copyright 2009 Green Web Publishing, LLC
Ad Management by RedTyger