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Would these help power a TEC with precision/

post #1 of 6
Thread Starter 
My brother helped set up my TEC plates to get the perfect voltage and what not running through them but there's no real way to control the temperature with great precision. I was browsing E-bay not even looking for Peltiers/TEC and I stumbled across a Digital Temperature Controller, like this one.

http://cgi.ebay.co.uk/Temperature-Co...ht_2010wt_1139

Would they work? It's not the exact one that is said to power and for TEC but would one like that or this one work?

http://cgi.ebay.co.uk/Mini-Digital-T...#ht_4221wt_905

I would like a yes or no answer and not some long post saying it has FAIL written all over it like my last topic, which turned out to work very well. I may not have explained perfectly because I only have one hand and I can't type huge descriptions of the entire set up. It wasn't a fail but I need precision now. I need to control the temperature, keep it cool and when needed crank it right up (well, down in degrees)
    
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post #2 of 6
Thread Starter 
I meant to say the one I did find, which I'm trying to find again had a lower voltage output for TEC plates, but I'm struggling finding it now, unless it sold out. But they are listed as Digital temperature controllers, which is why I asked if those would suffice.
    
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post #3 of 6
Quote:
Originally Posted by Exarphcoman antabitom View Post
I meant to say the one I did find, which I'm trying to find again had a lower voltage output for TEC plates, but I'm struggling finding it now, unless it sold out. But they are listed as Digital temperature controllers, which is why I asked if those would suffice.
Would you be able to upload pictures and post the results of your last project?

You may be able you use this controller depending on amperage requirements, Unfortunately there will never be a Yea/No answer for any information when dealing with TEC's. They have many variables, and are far more complex than any other cooling method including refrigeration.

http://cgi.ebay.co.uk/Temperature-Co...item3f016069af
Edited by xtremetechuk - 2/27/11 at 9:55am
post #4 of 6
Thread Starter 
Quote:
Originally Posted by xtremetechuk View Post
Would you be able to upload pictures and post the results of your last project?

You may be able you use this controller depending on amperage requirements, Unfortunately there will never be a Yea/No answer for any information when dealing with TEC's. They have many variables, and are far more complex than any other cooling method including refrigeration.

http://cgi.ebay.co.uk/Temperature-Co...item3f016069af
Yeah, I'll upload them when I get home later next week. I'm currently undergoing physiotherapy for my hand at Hospital and spending time with my girlfriend so I'm always out and about, never with my computer much now. I have two hands, one of them is very weak because of an operation to have it reconstructed with steel plates and screws, which is why I never fully explain and describe what I need (I get half way through the paragraph and give up from one finger typing).

The link you posted is the one I found earlier. I will be getting one to try it out. It's worth a try. Just need to get a UK mains for it and figure out how I'm going to plug it up. I want a clean tidy computer, all contained in one case. I don't want extra PSU's or more mains plugs than I need.

The TEC setup that I have at the moment does work but it does get a little warm (warmer than I'd like it to be and it's watercooled with an old XSPC CPU block and a Koolance heat exchanger, phobya G changer because of its size and a few fans, just to be sure and it's on its own pump) so I'm hoping being able to control it I could get the fine line between the hot and cold side, cool the hot side and keep the cold side cooler (if that makes sense) I know it's not entirely practical and it will fail along the lines somewhere, but I wont give up (I'm sure you've figured that out by now if you've read my posts)

If you give me a pair of simple boots and tell me I can fly with them, I will try and try until I've figured a way to do it. Failure is not an option!
    
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post #5 of 6
Without saying epic fail I will say this....

You will never have fine temp control of a TEC. They change temp too fast, no thermostat can keep up with them and voltage regulation while in many cases is better expecting fine control is almost impossible. There are too many variables whilst the TEC is running. Thats why you cannot get a constant temp for any good period of time with TECs.

That said any form of themostat, voltage regulation etc will "work" with TECs it is just a question of how well.
post #6 of 6
I was considering THIS controller off ebay. supports 12v-30v and 30A load.

Saying that, any DC motor controller will work to keep the TECs at a specific load though.
Edited by un-nefer - 3/2/11 at 7:53pm
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