Questions tagged [peltier]

The Peltier effect is a reversible physical process which is exploited in Peltier cooler/heater. The flow of current through this device pumps heat from one plate of the device to the other. This can be used to both heat and cool electronic components.

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1answer
109 views

How do proportion current for components?

I am making a mini-fridge. On one side is a 150mmx150mm aluminium plate. It has been roughed up to increase surface area. On the other side it has an aluminium CPU cooler which can survive the tdp of ...
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522 views

Making Hot and Cold room at the same time with Peltier stack

I am thinking about 2 small boxes with peltier stack middle of them to get a cold room and hot room at the same time. Is it possible to get -40 degree celsius cold room and 100+ degree celsius hot ...
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279 views

Charging supercapacitor using peltier module

Using peltier module and with additional circuitery i was able to achieve a dc voltage of 5V and current 5mA. I need to charge a supercap but the current is too low for that. Any idea about how can i ...
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765 views

Home made Heat Sink [closed]

We needed a heat sink for a TEC1-12706 Peltier module. We made one by breaking a transformer and attaching each plate onto an aluminum plate. Do you think this will work?
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1answer
585 views

Peltier heat-pump, insulation between hot and cold chambers [closed]

I have made a decent heat pump, with 4 x peltier elements each at 48W. Each element will be switched with a separate relay. I will later install DS18B20 sensors in the heatsinks, embedded in thermal ...
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3answers
144 views

Cooling circuits in a hot loft with dusty air and bugs

I have a home-made home-automation system that includes a CCTV unit, circuit boards for controlling PIRs and outside lights, a UPS and power supplies. In the summer the loft gets hot (>40C) and the ...
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2k views

Amplify current from a 4-20 mA temperature controller to drive a Peltier module

I have a temperature controller (Chino DB1000) which has a PID output of 4-20 mA. With this, I want to control the current going to a Peltier thermoelectric module (15V, 6A). I am doing this via an ...
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2answers
584 views

Peltier Module/TEG specs explainantion

I am looking for a Peltier module/TEG to power wearables and I'm not quite sure what specs I need or should be looking at. To be honest I am not quite sure what some of the specs even me. Essentially ...
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4answers
3k views

Two weaker peltiers vs one stronger peltier for cooling?

I'm planning on making a small water cooler for a project. I need to cool approximately 1.5L of water and have two TEC1-12706 (12v 6amp) peltier modules, and hoping to cool to as low as 6 degrees ...
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1answer
695 views

Powering thermoelectric cooler and fans with 12V input

I was considering a project with a thermoelectric cooling module rated 60w and so obtained an AC power supply of output DC 12V and 4.16A. I'm very new to electronics so excuse me for the basic ...
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4answers
2k views

Regulating power on a Peltier module

I have a Peltier module rated 12V 12A. I want to regulate voltage on it continuously from -12V to 12V, i.e. make an adjusted heater or cooler from the module. There are some industrial solutions, but ...
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2answers
225 views

Assistance with circuit design [closed]

Ok, so for the past few days, i've been getting more and more interested in Peltier Modules, and i've finally decided to make a portable mini fridge with one. After MANY long hours of research, part ...
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1answer
316 views

What will happen if I drive 2 TEC-12715s and 2 CPU fans off a 12v/30a power supply?

I'm planning an addition to my liquid cooling system for my computer. I would like to use two TEC-12715 peltiers, which pull up to 15a @ 16v, and two CPU fans, probably pulling around 5W total power. ...
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3answers
16k views

What power supply do I need to power 4 peltier plates with 5A 12V each?

I need to power 4 peltier plates (tec1-12706) with 12V and 5A for a thermoelectric cooler project. I wish to have maximum cooling. Also I need to attach a few(4) computer cooling fans to dissipate ...
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110 views

unknown component in mini cooler

I am modifying a mini cooler/heater and there is one component whose role I don't understand. The Peltier cell is attached to a heat sink on one side and is in contact with a metallic block on the ...
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3answers
616 views

peltier cooler heatsink

I am modifying a small cooler (mini fridge) that uses a Peltier cell. The cold side of the Peltier cell is in contact with the inside surface of the mini fridge. My question is: will gluing (with ...
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1answer
306 views

How much difference do peltier units have

I recently bought a 6 can fridge cooled with a tec1-12705 unit, meaning the current rating is 5 amps. It gets about 7 degrees C inside the fridge and I want to upgrade it. I've been searching for a ...
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7k views

At what current and voltage should I run my TEC/Peltier modules for max cooling effect?

I have 8 x TEC modules each with specs 12V, 6A, and I have a power supply of 12V, 10A. If I connect all them in series, I know current stays the same and voltage increases. But what I'm unable to ...
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2answers
882 views

Peltier Module TEC1-12706 draws only 2.7A. Is it normal or my unit is defective?

I had recently ordered a TEC1-12706 Peltier module from amazon. I tested the module as soon as I recieved with a 1.2V Ni-Cd to make sure its working and also to make sure of the hot and cold sides. I ...
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1answer
1k views

How do I connect multiple Peltier modules to one power source? [closed]

I am making a project which includes 8 X Peltier (TEC) modules of specs- 15.4V and 5A 3 X Cooling Fans 1 X Thermostat to control tempearature 1 X Temperature Display unit with Thermocouples Some ...
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436 views

Fridge/cooler circuit unnecessary diodes

I am modifying a mini cooler/heater to turn it into an incubator in which I can program the temperature sequence in time. I have reconstructed the electric diagram of the cooler/heater and I don't ...
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1answer
509 views

what will happen if i connect 6 TEC module in series? will it give high COP?

i m working in a project of peltier cooler .i want high cop as possible .so i want to ask of i connect 5-6 TEC module for extra cooling then will it work properly ? or can it give high cop?
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2answers
503 views

Powering of Peltier Elements and power issues! [duplicate]

I want to power up 4-5 peltier elements TEC 12706 which have maximum voltage of 16.4V and max current of 6.4A (at 50 C). Will a power supply of 12V 30A do the job (I'm thinking about connecting them ...
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3answers
234 views

Best design choice: linear regulator or switch converter

I need to power a Thermoelectric module with 10A maximum load current. I'm designing a card with a minimal design in order to change the current or the voltage across the load, given a standard ...
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147 views

Peltier power limits

I have 12v peltier modules that I wish to run as a heater and ac unit but they have have a limit of like 27ma I have tried plugging then directly into a 2a car cigarette lighter adapter and they ...
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1answer
1k views

how to increase the current from the LTC3108 chip

I am currently trying to do body temperature thermal harvesting using thermoelectric module. The voltage obtained from the module is around 50-60mV. There are not many chip out there is able to boost ...
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1answer
4k views

Peltier hot side cooling

i am trying to make a peltier powered mini fridge and i am having some trouble getting it to get to the temperatures i want. First of all, some info. I am using a Cooler Master T4 as the cooler for ...
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209 views

Themal Energy Harvester Trouble

So basically, I just recieved my LTC3108 breakout board and wanted to test it. The way it (supposedly) works is you solder two specific points on the board together to indicate a specific output ...
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190 views

Can I use a modified freezer to cool the hot side of a peltier element to reach very low tempetatures (-30°C)?

I'm quite new to this, so forgive me if I ask anything stupid, but I need some help and I hope that some of you here might be able to help me. For a school project, I'm building a cloud chamber. The ...
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1answer
3k views

What happens when a peltier fails?

I am trying to determine all possible failure cases for a heating application with a peltier. Most sources I find on the internet are looking at peltiers as a way of cooling CPUs, so I have heard ...
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2answers
269 views

grade school science experiment peltier module and led

I am doing a grade school science experiment. I am trying to light up a led light using pletier modules with only body heat. I am trying to figure out a lot of things since I have never done anything ...
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1answer
442 views

Will quickly switching polarity on a peltier damage it?

I am experimenting with different ways to heat up and cool down a peltier to a specific setpoint. Heating up the peltier to a setpoint using a PID has been relatively simple, and right now I am ...
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1answer
83 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 ...
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1answer
658 views

Constant Voltage of a Peltier TEG Tile

So I have several TEG peltiers, and the main issue that arises is the peltier tile neutralizes in heat over time. Applying my hand's heat to one side will soon affect both sides of the tile, therefore ...
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3answers
613 views

Adding capacitors prevents car peltier cooler from making low battery light flicker, but why?

I have a Black and Decker Heater/Cooler that I want to use in my Camper as a little drink caddy for in front of my Futon while I have company over and we are playing games, and I just switched to a ...
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172 views

Copper sheet thickness to use between Peltier and CPU

I'm going to use a TEC-12726 (50mm by 50mm, 240W QMax) to cool an FX-8120 (40mm by 40mm, 125W TDP) CPU, and I want to use the full size of the TEC by putting a sheet of copper between the CPU and TEC, ...
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1answer
411 views

Go around short circuit protection

I recently bought a lithium-ion battery that has a built in protection for short circuit. I want to power a thermoelectric cooler with it. But when i connect it to the battery it seems that the ...
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1k views

Troubleshooting HIP4081

I'm driving four N-channel MOSFETS (IRFLIZ44N) with a HIP4081, and the circuit looks like the following: The MOSFETS are driving a peltier module, and the input pins of the HIP4081 are being driven ...
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1answer
728 views

Running a Peltier directly from a transistor

New to post, but I come here often. So I am working on building a small fermentation chamber and i want to control the temperature using two Peltier's. One for hot and one for cold. I'm using two to ...
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294 views

driving a Peltier with a MOSFET

I am attempting to drive a Peltier device using a single MOSFET, controlled by a microcontroller. I am working with several different peltiers and various MOSFETs, so wont provide component details ...
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3answers
163 views

How does a thermoelectric generator generates electricity? [closed]

I want to know how a thermoelectric generator generates electricity. I know that it converts 'heat flow' to electricity.But some people say it consumes heat and converts it into electricity.The rest ...
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1answer
2k views

2 nos Peltier connection… Series or parallel

I'd like to build a mini AC using two Tec1 12706 Peltier modules. If I use two of them, should they be connected in series or parallel? Can I use a 12VDC power supply that outputs 2A and takes 220VAC ...
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3answers
2k views

Directly driving 5V source MOSFET H-Bridge with 3.3V logic

I am trying to design a H-bridge circuit for my project to drive a thermoelectric cooler (TEC). Basically, I am trying to control the TEC with a voltage source driven by PWM. Now the problem is, I ...
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1answer
657 views

Powering peltier tile using 3.7V lipo battery?

Is it possible power the peltier tile to a reasonable temperature using only a 2500mAh 3.7V lipo battery and DC Boost Converter to boost the output to 12V? The peltier tile I'm using is bought here: ...
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1answer
378 views

Is it possible to drill through a peltier?

I want something like this: But I don't want to pay 30 bucks (USD) for a single peltier. Can I just drill a normal one?
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4answers
18k views

Is it worth to try making peltier based refrigerator?

I built a box from 5cm thick Styrofoam with outer dimensions 60x55x80cm. I wanted to use it as a fermentation chamber for home brew purposes. The reason why I did not choose regular (some used cheap) ...
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1answer
877 views

How to regulate 2x130W peltier modules

I built a small fermentation chamber (cooling box) based on the peltier modules. I know this is not very optimal way as peltiers are not very efficient, but I had my reasons for choosing this way. ...
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1answer
148 views

Energy Harvesting Primary VDD and Battery Backup VDD power for MCU

Currently I am in the design process of circuitry for my energy harvesting circuit. I am using the CC1110F32 MCU from TI. I am using the Development kit boards that they created for this project. The ...
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1answer
159 views

Peltier and Portable Litium Ion Battery [closed]

I am designing a portable rechargeable heat flask using peltier module at what specifications I should choose my power supply?? I am actually going for rechargeable lithium Ion battery with 12 volt ...
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3answers
18k views

Use Peltier Cooler for effective Air Cooling?

I am using 4 TEC1-12706 thermoelectric cooler on a suitcase, by cutting 4 holes to fit these through and sealed them. All of them are connected to 12V DC supply from a SMPS and each of them have ...