tec power options

i was wondering where the best place to ask a question would be,

ive been playin with peltiers lately
and the ones i have are 0-16v 026A

i was wondering if there was any way to make a power supply for them
or some way to usa like a car batt. i was just worried as my deepcycle is like 1200 amp

dont really want to blow up my 30 a piece tec's 

the goal eventually is to mount like 10 to the undersides of an old aluminum icetray 
so i can submerge the bottom in water and fill the tray up, flip the power switch and in like 40 seconds have myself some icecubes

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lemonie7 years ago

A 12V deep cycle battery will be just fine, never mind what it can output.
These things are not very efficient, and need effective cooling on the hot sides.


Isn't there a bracket of temperature differences when they're at their best... Aim for that?
Yes, but the reason professional refrigeration-engineers don't use Peltiers is that they are "shite" for it.

furry1 (author)  lemonie7 years ago
if i recall the temp difference is 180' from the hot side,
so if i have the heatsinks of the hot side submerged then i should be able to get about -150' ish easy with just cool water,

a bucket of water should absorb the heat of a cup or two of the soon to be ice water (making up for the bad efficiency )

but the question isnt the tec's or the efficiency.

its how do i take a car battery and connect it to output 0-16v at 0-25 amps per line
times however many lines i decide to use
lemonie furry17 years ago

Do you need 0-16V, or would 12V do you?
Just wire them up in parallel.
But do read up on 'em - http://www.heatsink-guide.com/peltier.htm

furry1 (author)  lemonie7 years ago
it will take anywhere from 1 volt to 16 volts
so id say i want anwhere in the 12v - 16v range
at anywhere above 15 amps to say 26 amps which it the max rated for each unit

lemonie furry17 years ago

Use the battery as is, or listen to steve'.

furry1 (author)  lemonie7 years ago
it just dosnt seem right to just connect two wires to a car batt.

it seems to simple

and none of you are actually answering the question

how do i
take car batt
and make (whatever) 8/12/16 volt (whatever) 10/15/20/25 amp lines that will go to each unit
or the array of them in parallel

do i simply need a wire and a fuse and hook em up ?
or what?
You need a PWM based amplifier, in an H bridge
furry1 (author)  steveastrouk7 years ago
what waht what???
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