# All Questions

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11 questions
22 views

### Cooling Peltier Maths

I want to construct a peltier cooling system. However, I have limited mathematical skills. Can I ask how to do the maths to calculate how much temperature differential can a specific peltier cool ...
53 views

### Water-Based Heat Sink

I am trying to incorporate a TEC in a portable system. The heat from the interior of the system needs to be transfered to the exterior where it can be dissipated freely into the environment. Now, I ...
23 views

### Temperature control for car chiller [closed]

I have this circuit in my car chiller which works on 220v ac, however the cooler auto cut off is at 15 degree c, where and how can that be lowered to let's say 2 degree c. Any guidance will be highly ...
66 views

### Is there a SSR like device that can switch at kHz frequencies?

I'm designing an industrial control system that incorporates several peltier devices. As I understand it, these devices are more efficient when driven with a constant voltage, vs being cycled every ...
2k views

### Heating a tube of aluminium electrically

I need to regulate the temperature of the surface of a tube of aluminium. The tube is used as a mandrel for composite molding/curing, so the target temperature is below 100C. Currently, there is no ...
47 views

### I want to be able to simply control the cooling tempreture of a small 40 to 60 millimeter thermoelecrtic cooler

i want to be able to control the cooling temperature of a small 40 to 60millimter TEC. I understand voltage level plays a part but do not know what voltage level equtes to what temperature on either ...
786 views

### H bridge for peltier heating and cooling

I am testing DRV8840 circuit in my setup as a 12V, 3amp peltier controller. And there are 3 temperature set points : 25, 30, 37 celcius. Hardware configuration done so far as follows: Trial 1 : ...
89 views

### How can I measure moisture on a conductive flat surface as an analog/digital value?

So as the title states, the question is: Is there a way to measure moisture on a electrically conductive flat surface? Optionally, it would be great if I could have an indication of the amount of ...
80 views

### Peltier inquiry

With availability for high powered Peltier thermoelectric heating / cooling I'm inclined in a cooling design incorporating them. Being first time incorporating the same I'd like more understanding and ...