power supply to the cockpit

[Gallie]

Hi guys,

Ive tried to alter my old ATX power supply into a utility power supply to power some items in the cockpit (two 10.4 inch LCD, solenoid switches and io-boards), i did got it working until i wanted to tidy things up and cut the wires down and made plug connectors on the 5 and 12v lines. I havent been able to get any power out of it anymore, the supply only powers up for about 1 second.
(yes i connected the green to one of the black wires and no i did not have a resistor connected to the 5v line, it worked perfectly before altering the cables)

Because of this i went searching for an alternate power supply and found these:

http://www.ebay.nl/itm/9-Port-CH-9CH-DVR-Power-Supply-Box-DC-12V-10A-For-Security-CCTV-Camera-LED-Strip-/130801318990?pt=US_Security_Cameras&hash=item1e745dbc4e

Supposively you can only get about 1.5 amps max on one port with these with a max of 10amps on all ports. Would 1.5 amps be enough to power up a 10.4 inch lcd or the solenoid switches (original 737)?

Has anyone used these power supplies before?

Cheers,

Mike

[jskibo]

I use one to power Foscom security cameras in my house. Works for that but very low amperage application.  Plus side is the voltage is adjustable, downside is it gets hot and only passive cooling.

[sagrada737]

Rigging a PC power supply certainly will work, but I think a better choice is to use a one of AutomationDirect's DC switching power supplies that are intended for industrial application.  Price points are not bad and their service is excellent.  Here is a link:

http://www.automationdirect.com/adc/Overview/Catalog/Power_Products_(Electrical)/DC_Power_Supplies

Mike

[jonesthesoftware]

Hi mike
sounds like you've shorted out the wires when you you re-arranged them as PC power supplies have auto shutdown when an overload or short circuit is connected.
Check that you have the correct colours linked together. e.g
All reds together for +5V
All blacks together for common 0 volt
All yellows together for 12 volt
green to black to turn on PSupply
You can ignore all other colours but keep them isolated.
PC power supplies are actually very well designed and are short circuit proof as they simply shut off until the fault is removed and you cycle the power.
CHeck your colours you may not need a new one.
regards
geoff

[jackpilot]

On some there are  voltage sensor wires (thin ones) to be hooked up to the same color bigger wires.(thin red to a red , thin yellow to a yellow etc)
Besides if you have a lightbrown thin one it has to be linked to an orange.
Anyway some details here:

http://www.cockpitbuilders.com/community/index.php?topic=1780.msg13722#msg13722
http://www.cockpitbuilders.com/community/index.php?topic=2904.msg22459#msg22459

For a full cockpit you may use 2 or 3 PSU, they are cheap, easy to replace, and they spread the load on your home circuits.

[Gallie]

Guys,

thanks for the help and ideas!

Jack, i got it up and running again! ive connected the thin brown (sence 3.3v) to one of the orange (+ 3.3v) wires.

I should have searched the forums a bit better....

Mike