PSU series connecting. knowledgeable only please.

qwerty57 · 06-08-2003, 07:50 PM

Ok, I understand that you can connect any two psu 12v in series as long as they don't share a common earth ground.. so is this possible.

12v of antec 550w truepower

10-15v adjustable single switching DC PSU "meanwell s-320-15 with the green earth from wall not hooked up only neutral and live..

take the +12v(yellow) from the 550w antec to the "V-" on the meanwell. then take the -12v from the antec to "source" and the "V+" from meanwell to "source".

?? this should give me an adjustable range at 12v+10v=22v to 12v+15v=27v correct???

12v=antec 550w
10-15v=menawell

I see no reason it shouldn't work, but maybe Im missing something. thanks

bigben2k · 06-08-2003, 08:09 PM

Almost.

The +12v line (yellow) on the PSU is the one that can carry the load, you've got that right. The return line on the PSU (Antec) is called the GROUND, and is black.

I can't tell you about the VPSU (Meanwell), but you should look for a GROUND there as well. It's possible that it's labelled as "V-", but that's rare.

You might want to re-read OnDaEdg's article: there's a few tips in there you'll need.

qwerty57 · 06-08-2003, 08:13 PM

cool thanks ben

qwerty57 · 06-08-2003, 08:35 PM

OK I think I got what I want

on the meanwell

-V is not connected to earth/chasis

so what I worked out is

+5 red on antec to hot/red on tec
either black from molex on antec -5 or -12 to +V on meanwell.

-V on meanwell to black wire on pelt.

this should give me 5v+10-15v or 15-20v adjusted from the menawell

lol sounds easier than the voltage mod's I do on my $400 VCards, but I still am catious

bigben2k · 06-08-2003, 10:13 PM

If it sounds like a duck, and it walks like a duck, it's probably...

You don't want to use the -v lines on the PSU, because they can't handle the current that you're trying to put through them.

Here's an essential tip: do not exceed the current rated on the PSUs, or you'll blow something. What current do you expect to go through the TEC, at various voltages?

Of course, -v isn't connected to the chassis, but the ground might be. What connections exist on the Meanwell PS? Is it just V- and V+? Does the plug have a ground?

qwerty57 · 06-08-2003, 10:46 PM

yeah theres

L|N|G| -V -V +V +V

the "G" is connected to chasis and i was only going to hook the L and N wires from the wall socket.

the tec is a 172w 11a model right now its running at 17.3v on another dedicated switching 15v 10a 150w psu. I get killer results, but since I run a chiller at 4c or less with high flow rates I find I can go up to 20v+ and stil see small gains without negitive effects. I resently went from 11.89v on my 226w mcw462-uht to 14.3v and I saw a huge gain in higher vcore stable load temps.. from around 174w out of the 226w at 11.8v to 203w at 14.3v if i did the math right...

so should I go for it?

bigben2k · 06-09-2003, 12:30 AM

Do you have a link to that Meanwell?

I think that that G line is the ground. Not sure it can handle the current.

Can I assume that you would have nothing else hooked up to the Antec's +12 line?

Since87 · 06-09-2003, 12:42 AM

Yes, qwerty57, you've got it.

I'd suggest leaving the Meanwell's chassis connection to earth ground for safety's sake. Since neither output is connected to chassis this won't be a problem.

06-08-2003, 07:50 PM	#1
qwerty57 Cooling Neophyte Join Date: Apr 2003 Location: hollywood, fl Posts: 40	PSU series connecting. knowledgeable only please. Ok, I understand that you can connect any two psu 12v in series as long as they don't share a common earth ground.. so is this possible. 12v of antec 550w truepower 10-15v adjustable single switching DC PSU "meanwell s-320-15 with the green earth from wall not hooked up only neutral and live.. take the +12v(yellow) from the 550w antec to the "V-" on the meanwell. then take the -12v from the antec to "source" and the "V+" from meanwell to "source". ?? this should give me an adjustable range at 12v+10v=22v to 12v+15v=27v correct??? 12v=antec 550w 10-15v=menawell I see no reason it shouldn't work, but maybe Im missing something. thanks

06-08-2003, 08:09 PM	#2
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Almost. The +12v line (yellow) on the PSU is the one that can carry the load, you've got that right. The return line on the PSU (Antec) is called the GROUND, and is black. I can't tell you about the VPSU (Meanwell), but you should look for a GROUND there as well. It's possible that it's labelled as "V-", but that's rare. You might want to re-read OnDaEdg's article: there's a few tips in there you'll need. __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-08-2003, 10:13 PM	#5
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	If it sounds like a duck, and it walks like a duck, it's probably... You don't want to use the -v lines on the PSU, because they can't handle the current that you're trying to put through them. Here's an essential tip: do not exceed the current rated on the PSUs, or you'll blow something. What current do you expect to go through the TEC, at various voltages? Of course, -v isn't connected to the chassis, but the ground might be. What connections exist on the Meanwell PS? Is it just V- and V+? Does the plug have a ground? __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-09-2003, 12:30 AM	#7
bigben2k Responsible for 2% of all the posts here. Join Date: May 2002 Location: Texas, U.S.A. Posts: 8,302	Do you have a link to that Meanwell? I think that that G line is the ground. Not sure it can handle the current. Can I assume that you would have nothing else hooked up to the Antec's +12 line? __________________ WBTA (Water Block Testing Alliance) Nordic Hardware WC 101

06-08-2003, 08:13 PM	#3
qwerty57 Cooling Neophyte Join Date: Apr 2003 Location: hollywood, fl Posts: 40	cool thanks ben

06-08-2003, 08:35 PM	#4
qwerty57 Cooling Neophyte Join Date: Apr 2003 Location: hollywood, fl Posts: 40	OK I think I got what I want on the meanwell -V is not connected to earth/chasis so what I worked out is +5 red on antec to hot/red on tec either black from molex on antec -5 or -12 to +V on meanwell. -V on meanwell to black wire on pelt. this should give me 5v+10-15v or 15-20v adjusted from the menawell lol sounds easier than the voltage mod's I do on my $400 VCards, but I still am catious

06-08-2003, 10:46 PM	#6
qwerty57 Cooling Neophyte Join Date: Apr 2003 Location: hollywood, fl Posts: 40	yeah theres L\|N\|G\| -V -V +V +V the "G" is connected to chasis and i was only going to hook the L and N wires from the wall socket. the tec is a 172w 11a model right now its running at 17.3v on another dedicated switching 15v 10a 150w psu. I get killer results, but since I run a chiller at 4c or less with high flow rates I find I can go up to 20v+ and stil see small gains without negitive effects. I resently went from 11.89v on my 226w mcw462-uht to 14.3v and I saw a huge gain in higher vcore stable load temps.. from around 174w out of the 226w at 11.8v to 203w at 14.3v if i did the math right... so should I go for it?

06-09-2003, 12:42 AM	#8
Since87 Pro/Guru - Uber Mod Join Date: Sep 2002 Location: Indiana Posts: 834	Yes, qwerty57, you've got it. I'd suggest leaving the Meanwell's chassis connection to earth ground for safety's sake. Since neither output is connected to chassis this won't be a problem.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)