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Linear TEC (Thermo Electric Cooler) Driver (OPA353)

2017-03-15 05:07  
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TEC is one of the cooler that was popular because of its robustness and maintenance free characteristic. This article shows one example of the TEC driver. To operate this circuit operates we need a single 5V supply and drives the TEC in the most preferred “constant-current” mode.? It will deliver ±2A into a TEC. Picture below shows the schematic of the circuit:

thermoelectric cooler driver circuit schematic diagram

As the amplifier of this TEC driver, this circuit uses a voltage-controlled current source. The effect of thermal “back? EMF” on current through the TEC under dynamic temperature control conditions can be? eliminated by constant current drive.? Besides that, it also assures that TEC drive current is independent of production variations in TEC long-term aging or junctions .

This article describes the Linear TEC (Thermo Electric Cooler) Driver (OPA353). The content is very simple, very helpful. Components in this article can help you understand better understanding of this article. For example, in this article, you can go to find and buy these components:OPA353.

 


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