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controlling peltier temperature

johnny97

Dec 4, 2010
1
Joined
Dec 4, 2010
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hi all, i was given a peltier unit to play with. heres the details for the unit.

Type number: TEC1-12706
Couples: 127
Umax (V): 15.2V
I max (A): 6A
Tmax (degree Celsius): 67

i have fans and heatsinks attached to the hot/cold sides and a 12 volt car battery to power the unit.

what i like to know is if i place a 5 ohm/15 watt linear potentiometer between the unit and battery, would it be sufficient to control the unit's temp safely?

please note that i'm new to electronics. thanks :)
 

Resqueline

Jul 31, 2009
2,848
Joined
Jul 31, 2009
Messages
2,848
I'm not absolutely sure but I fear that the potentiometer is at risk of getting overheated. Maybe it'll get by if you put it in the airstream of one of the fans.
Also, you won't get a temp control with a rheostat, just a power control, going down to approx 1/3rd of full current. But for play it's good enough doing it that way.
 
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