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peltier sensor controler

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MaxJr

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hi
i just buy a peltier. And here is the spec
**broken link removed**
click on DRIFT-0.8 for the full spec


And i got an ideal circuit to power up and to control the peltier tempereture. Here is the circuit
Pulse Width Modulation

But i have another problem; You see i buy this pelter cool down my PC processor. So this processor tempereture will go up and down depanding the load of it.
So i won't be able to monitor the tempereture all the time.
Is there any ways to put a sensor in the circuit. So that i only have to set the tempereture to what i want and the circuit will do the rest
 
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