oh sorry DC common ground to earth is what i meant. Thanks for clearing that up
Makalu
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Last Activity: 08-27-2010, 07:23 AM
Joined: 06-27-2006
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Re: Connect 3 psu's in series?
oh sorry DC common ground to earth is what i meant. Thanks for clearing that up
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Re: Connect 3 psu's in series?
yeah it reads 15+v across any 5v lead on PSU1 in the diagram and any ground on PSU3. I didn't have to add any resistors since they all put out over 5v just powered on alone but PSU2 is an old Astec AT style and it wouldn't power up without a load and attaching an old cd-rom drive worked.
I thought that I'd have to insulate the common ground on like 2 of them but apparently not or maybe I got lucky and they aren't wired that way.Leave a comment:
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Re: Connect 3 psu's in series?
it works great 15.49v (18amps I assume since that's the lowest output of the three) TYVM!
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Re: Connect 3 psu's in series?
yeah i looked at a bunch of laptop bricks and found some that put out about what i need (16v @ 8a) but the price was higher than the Mean Well units. My car battery charger is only 3 amps, but I'm going to check the prices on those because I think you're right about that being the cheapest way to go. Thank you very much for the wiring description and diagram because I'm gonna try that too this weekend and I'll let you know what happens. Been using a couple of old optical drives to bump up the 12v rail but i'm not sure how i'll try and bump the 5v rail...Leave a comment:
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Re: Connect 3 psu's in series?
oh yeah the circuit protection wouldn't like that...what about the old AT power supplies? Do they have that? Just curious I guess since I only have one of those and in either case it'd be too cumbersome to keep...43 bucks for a Meanwell 15v 10a unit...decisions decisionsLeave a comment:
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Connect 3 psu's in series?
Well I bought an 80w 16.1vmax peltier to see how effective they are at cooling the air in a case (ala Channel Well IceCube psu or Sytrin Nextherm case) and the answer is erm not very well...at 12ish volts. I don't want to buy a 16vDC power supply for something i may not even use, but i do have 3 working ATX psu's and I was wondering if i can connect the 5v outputs in series for a 15v source? If so, can someone explain in layman terms or diagram how to do this? How would I disconnect/connect the grounds is the part i'm most uncomfortable with. Thanks in advance. -
Re: Channel Well Power Plus series
lol...but i already live in a forest and i've got a headache from trying to calculate my ambient vitamin supply so i can decide if it's worth the upgrade
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Re: Channel Well Power Plus series
Gonzo, I found the site cached here:
[url]http://72.14.203.104/search?q=cache:tQ6VmBTCWnwJ:www.cwt.com.tw/english/4_news/2_detail.php%3FID%3D11%26page%3D0+channel+well+a-live&hl=en&gl=us&ct=clnk&cd=5[/url]
And yeah you are right about the static electricity and the shape.
I found the info on the ice cube too, which I obviously didn't read to well at first:
[url]http://72.14.203.104/search?q=cache:tufU4Usljm8J:www.cwt.com.tw/english/4_news/2_detail.php%3FID%3D10%26page%3D0+channel+well+ice+cube&hl=en&gl=us&ct=clnk&cd=2[/url]...Leave a comment:
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Re: Channel Well Power Plus series
p.s. The blurb on the Ice Cube units was really vague (and I'm not finding it cached). It wasn't clear just what is supposed to be cooled (system or psu?) nor how.Leave a comment:
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Channel Well Power Plus series
I noticed these new psu's from Channel Well awhile back and haven't been able to find any information on them other than a very short blurb that used to be in their news or PR section, so I was hoping someone here can provide some info or speculation. From what I gather the A-Live units have an air ionizer built in. Not quite sure what to think of this other than if i recall the 1970's correctly (highly doubtful that) those things work best in a pyramid shaped case. ;-)
It's the Ice-cube units I'm curious about. If you look at the photos of them you'll see the external heatsink....
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