-
18-08-2010 #1
Hi
I'm using 2 Dell power supplies to provide 24 volts and found lots of info on the net on how to do this. The only thing some say you need a load resistor and other say just bridge black and green. I've seen some sites suggesting a 12 V car bulb across the +5Volt supply is enough. The Dell power supplies I'm using are from GX270 and are 20 pin on the motherboard connector.
Would the driver board put enough load or do I just not need a load resistor.
Thanks
Keith
-
18-08-2010 #2
The issue is that some ATX supplies power down the +12v rail if there is no load on the +5. The simplest way is to try it and see... if the 12v is rock solid without a load then fine, if not, try a car bulb on the +5 rail as suggested.
-
18-08-2010 #3
When I've converted ATX PSU's in the past (hard wired jobbys) I've stuck a 10 ohm, 5-10W resistors (those heatsinked ones with screw down tabs) on the 5V rail, and screwed it inside the case.
Also hard wire the green wire to the GND (black)
If you want a quick way to test, just stick an old HDD on one of the plugs.
-
18-08-2010 #4
Hi Daniel
do you know of a supplier, I've looked on maplins but can't seem to find any
keith
-
18-08-2010 #5
Something like this if you live near an RS shop:
http://uk.rs-online.com/web/search/s...duct&R=0159900
Or this (closest match on eBay) with postage:
http://cgi.ebay.co.uk/1-x-10R-25W-Al...ts_Supplies_ET
Ta,
Dan :)
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Power Supply Suggestions please..
By Ricardoco in forum General ElectronicsReplies: 37Last Post: 30-01-2013, 06:37 PM -
PCPPS V3 Power Supply?
By birchy in forum General ElectronicsReplies: 4Last Post: 10-12-2012, 04:21 PM -
Minimal-cost Power Supply Strategy - Repurpose Laptop Power Supplies
By LoveLearn in forum General ElectronicsReplies: 0Last Post: 25-01-2012, 09:29 PM -
FOR SALE: 50V 20A Power supply
By Jimmybristol in forum Items For SaleReplies: 8Last Post: 30-05-2011, 11:01 PM -
power supply
By hitmythumb in forum General ElectronicsReplies: 6Last Post: 21-06-2009, 10:27 AM
Bookmarks