5v/12v Power Supply Questions

[deplanche]

Based on the recommendations of some of the great people in the forums, i purchased a Switching Power Supply (Model PTE43-31) off of e-bay. On there was a link to an instruction manual (http://www.powdec.com/pdf/pte43.pdf), that I lack the technical knowledge to make sure I am hooking up correctly for the Grinch and Ren-C; or for testing my MR-16s.

Part of this discussion started under another thread, http://www.doityourselfchristmas.com/forums/showpost.php?p=27657&postcount=14, but it was getting a little off topic, so i decided to continue it here. So here we go...

1 - On connector CN1, there is a pin for the Line and another for the Neutral. If I was hard wiring into the house wires, the line is black and the neutral is white, correct?
2 - Since I am not hardwiring this, but connection to a plug (at least I think that makes the most sense), which side of the plug is the line and which is the neutral? I know there are 2 sides on a polarized plug, with one bigger than the other. Just not 100% sure on which is which, and don't want to hook it up backwards.
3 - If I want 5v for the Grinch and Ren-C, which pins on CN2 should I connect to. From the pictures that Leon posted (Thanks Leon) in the other thread, it looks like CN2-2 and CN2-3 are both for V1, which is the 5v. Do I need to hook up to both with one wire, or is one the line and the other the neutral? I am very confused here.
4 - Similiar to #3, but I want to get 12v to power the MR16s from the PC coop, rather than the 5v. Which pins to I connect to for that?

I'll stop there for now. I am sure I will have more, but I will wait to see what kind of responses I get on these. And since I am still relatively new to all of this (as if you couldn't tell from the questions I am asking), as simple as possible is best. And if anyone has one of these, and can post pictures, that would be great too.

Thanks,

Jon

[kmc123]

1. Correct.
2. Wide side is Neutral. (You can always check things like this yourself with a multi meter - Put the meter into a resistance / continuity mode, place one probe to the black wire, and then take the other probe and touch the prongs. When it beeps or shows 0 ohms, that is the prong that is wired to black)
3. The middle set of pins gives you 5v and the next set out is also 5v - if you flip it over and look at the traces, you'll see that they are connected.
4. The top pin is +12v, and you use the same negative you use for the 5v, so pin 4 or pin 5, your choice.

[rlilly]

See if the attached helps.

[deplanche]

You can always check things like this yourself with a multi meter -

I win the duh award there. That would have been the simple way to figure out which is 5v and which is 12v. Not sure I would have got the neutral correct though even with that, so I guess i did need to ask the question. Or at least feel better having done so.

Another associated with this power supply. On the pdf they provide, there is a Molex part number for the mating pin connectors. I noticed in another thread someone was talking about Mouser part numbers for that, but these may match up better. Plus, I noticed that they have a request sample section like the allegro chips have. Has anyone requested these samples, and if so, did you get them?

[kmc123]

I did not use the molex connectors, I heated up the connections on the boards, and pulled the pins out with pliers. Then I soldered my wires in the holes left by the removed pins.

[animal]

I win the duh award there. That would have been the simple way to figure out which is 5v and which is 12v. Not sure I would have got the neutral correct though even with that, so I guess i did need to ask the question. Or at least feel better having done so.

Another associated with this power supply. On the pdf they provide, there is a Molex part number for the mating pin connectors. I noticed in another thread someone was talking about Mouser part numbers for that, but these may match up better. Plus, I noticed that they have a request sample section like the allegro chips have. Has anyone requested these samples, and if so, did you get them?

Hey deplanche,
I was able to grab those power supplies too off of ebay. I'm useing it the same way you are. 2 Ren c's and 2 grinches. I got a slick way I think on a controle box for them. I'm going to use the molex plug set up. I like the idea of each component being unpluged and removeable. Your going to need a molex pin crimper in which I can't FIND RIGHT NOW!!!!!,and they are kind of expenseive.I'll have to go kevin's route if I can't find it. Be carefull not to over heat the pad pulling the plugs off. You could possibly lift it. Wick or use a desoldering pump to remove the solder trying not to over heat it.

animal

[rlilly]

On the pdf they provide, there is a Molex part number for the mating pin connectors. I noticed in another thread someone was talking about Mouser part numbers for that, but these may match up better.

deplanche, the 'mating connector' on the pdf is actually the connectors on the PC board.

I did some looking (because chasing down Molex parts is a real pain) and found the real mating connectors.

The pin is Mouser 538-08-70-1030. The 3 pin plug into which these pins mount is Mouser 538-09-50-1031. This mates to CN1. The 6 pin plug is Mouser 538-09-50-1061. This mates to CN2.

If you only need the 5VDC supply, the 3 pin plug will work for both CN1 and CN2.

[jeffathompson]

More power supply questions.
Anybody use one of these?
http://www.allelectronics.com/cgi-bin/item/PS-148/480/POWER_SUPPLY,_5.1V_12A,_12V_2.5A,_-12V_2.5A_.html

Now that I'm reading the tech sheet I more confused about the pins than when I was just looking at it!

[kmc123]

Jeff,
That's pretty large - 7 x 4.25 inches
Here is a picture from the comments section with a guys hand holding it:
http://i22.photobucket.com/albums/b336/Lylii/PS_MAP110-S148.jpg

[jeffathompson]

Jeff,
That's pretty large - 7 x 4.25 inches
Here is a picture from the comments section with a guys hand holding it:
http://i22.photobucket.com/albums/b336/Lylii/PS_MAP110-S148.jpg

Bigger is better right? LOL It should have enough power once I figure out how to hook it up.

[kmc123]

So you already have it?
Is it as big as it looks?
Where is the tech sheet - I'll help you with the pinouts.

[rlilly]

Jeff,

Great find!

Twice the amps at a lower price! (Making some Tool Time More Power grunts!)

[jeffathompson]

So you already have it?
Is it as big as it looks?
Where is the tech sheet - I'll help you with the pinouts.

It is pretty big compared to the ones you have, but it's not that big. t $7.50 i figured if I used it to run a yard train it was worth it.

OVERALL SIZE: 7.00" X 4.30" X 1.97" (177.8mm x 109.2mm x 50.0mm)
OVERALL WEIGHT: 1.3 lb (0.59 kg)

http://www.power-one.com/resources/products/datasheet/map110.pdf

No problem figuring out 110 line, Neutral and ground.
I assume the Jumper pins in the upper right have something to do with + vs -
If I get enough to power this thing safely I can figure it out with a VOM

[jeffathompson]

So you already have it?
Is it as big as it looks?
Where is the tech sheet - I'll help you with the pinouts.

I think I got it working