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Cooler Master V10 Modding - Page 7

post #61 of 82
Thread Starter 
well, if you replace the tec, you can just not hook up the sensor/control box. It would work, but you chance blowing out your PSU if it can't handle the new TEC. This is the route i will ultimately go, since i have no other options, but i wanna maximize the size of the TEC i can use (as opposed to the 40x40 that is in there now) while not needing to get an additional TEC PSU. I almost just ordered the best 40x40 i found, but want to go home in the morning after work and do a few more measurements. Let you know what i end up ordering tomorrow night...
    
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post #62 of 82
I would highly suggest that if you replace the TEC you just use a meanwell PSU instead. It ends up being a lot less of a hassle and much less hazardous.
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post #63 of 82
Thread Starter 
yeah, i think i have to agree. Also, i want to go all out on my "next" system and will need one ultimately anyway. Justifying the expense @ this time is whats rough; guess ill sleep on it and see where my wallet guides me...
    
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post #64 of 82
Thread Starter 
Question for the TEC afficianados out there:

Since i am trying not to go all out on this project (as of yet), i found a power supply on ebay that is in the right price range (for now) and could become a great bench TEC/accessory PSU. I have also linked the one from Thermo Electric that I was thinking of getting.

Ebay model 1: 12V 10A Switching Power Supply AC DC Converter 19-158 (found this by referencing the model number in the picture)
Ebay model 2: 12V 30A DC Universal Regulated Switching Power Supply (added with edit. would this compare to the C-TE model?)
Custom Thermoelectric model: DC Power Supply 300 Watt 12 volt 25 Amp

TEC i am looking to get for this project:

Qmax............Imax........Vmax..DTmax..Tmax
225 watts 15.5 amps 24 volts 64°C 125°C


Again, i am not looking to use this with my system when assembled, but instead to use on the bench to see if the TEC will give the results i am looking to achieve. ( i relaize the amperage on the ebay model is less than the Imax of the TEC, but i dont know what the TEC will be pulling @ half load (12V).

EDIT: i found more on ebay that are a little more, but still in range for the moment...
Edited by phatman81 - 8/29/09 at 5:55pm
    
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post #65 of 82
Quote:
Originally Posted by phatman81 View Post
Question for the TEC afficianados out there:

Since i am trying not to go all out on this project (as of yet), i found a power supply on ebay that is in the right price range (for now) and could become a great bench TEC/accessory PSU. I have also linked the one from Thermo Electric that I was thinking of getting.

Ebay model 1: 12V 10A Switching Power Supply AC DC Converter 19-158 (found this by referencing the model number in the picture)
Ebay model 2: 12V 30A DC Universal Regulated Switching Power Supply (added with edit. would this compare to the C-TE model?)
Custom Thermoelectric model: DC Power Supply 300 Watt 12 volt 25 Amp

TEC i am looking to get for this project:

Qmax............Imax........Vmax..DTmax..Tmax
225 watts 15.5 amps 24 volts 64°C 125°C


Again, i am not looking to use this with my system when assembled, but instead to use on the bench to see if the TEC will give the results i am looking to achieve. ( i relaize the amperage on the ebay model is less than the Imax of the TEC, but i dont know what the TEC will be pulling @ half load (12V).

EDIT: i found more on ebay that are a little more, but still in range for the moment...
Hi Phatman....

I think what your planning is great, about benching the TEC. it will help you understand very much more about how they work.

On the point of a power supply... I always go about this...and I know some others disagree but honestly you will do well to get a power supply with a good voltage variation, especially if you want to understand undervolting.
Meanwells and I believe the power supplys you found only have a low voltage variation usually in the order of +/- 10-15%. i personally don't think it's enough.

The supply I use goes from 4-16v and can give a continuous supply of upto 22amps (25amps max) since I am mainly interested in undervolting it suits me fine the TEC's I am playing with are 30v 16A.

I realize this may not cover everyone elses ideals but I would advise you look on Ebay in the radio amateur section - you needn't buy them there - you can often get then from the manufacturers page or they will have a suppliers list. I found the supply I use on Ebay but I buy them direct from the manufacturer. I have several of these units and plan to use two in my current TEC project.

EDIT - If your benching TEC why not pick up a few means of cooling ? Remember the Vapochill micro ???? Seems to drifted into obscurity....you can pick them up quite cheap now... if you get the ones with the stronger fan or swap the fan out for a more powerful one. With a strong fan on they are rated about 170-180w absolute max, nice cheap cooling that so long as you install it correctly ( good TIM, pressure the TEC to 150-300psi and then pressure the VM unit to the TEC unit at least 75psi.) will happily cool an undervolted TEC very efficiently.

EDIT again - you don't necessarily have to have a supply to match the TEC's max specs. You only really need one to match the operating point you plan to use, especially if using multiple TEC's. You can vary the power you supply to TEC's but altering how they are wired.
Do you know the two most basic electric rules ? If you do....you know what I am talking about.
Parallel and series is a hint.
Edited by zipdogso - 8/31/09 at 5:05pm
post #66 of 82
Thread Starter 
Tnaks for the info. It really does help out. The TEC is on its way and im still looking for a PSU for it. Ill check the amateur radio section and see what i can come up with.
    
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post #67 of 82
Thread Starter 
After looking for a TEC that would be more suited for a bench setup, i was not happy with what i was finding. Looking at the sticky in this section, i saw the posts about creating your own. Since i have a ton of extra parts at home, i went this route instead. I have the PSU almost completely redone and for this experiment, it should supply enough amperage off the 12V rail for the TEC i mentioned in a recent post. (i have the TEC in hand, just need the PSU to be completed).

Flickr Set:
PSU specs:


Figured if i was gonna spend $50, i might as well get something i will reuse later...


I stripped the circuit board of all wires not needed and got a custom project box for it. It turns on now, but w/o any V wires, i cant really test it yet...


Thanks for everyones input so far!
    
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post #68 of 82
keep up the good work ! i'd love some more pics
post #69 of 82
I have an old ATX modded PSU that I've been using on my 15vdc and under TEC's for about 3 years now and it's still going strong. You'll like those little solid state Crydom's, that D2425 is the same model I use most of the time for PSU's and pumps.

Looks good! Thanks for the pic's..
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post #70 of 82
Thread Starter 
i wanna do a full write up of each component i mod, so ill def get more pics for you guys. If you click the flickr link, it will show you all the other pics in the set (didnt wanna fill the post with pics for 56k users (do they still exist?! lol). finishing my last night shift of work tonight (hopefully forever), so as soon as i can be awake during the day, i'm back to modding for sure!
PSU MOD PICS
    
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