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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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Simplest Peltier Control

I wish to control the delta-T across a Peltier module using constant voltage and variable current. If efficiency is not an issue, can I just wire a potentiometer in parallel with the module? I ...
M Lopez's user avatar
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Peltier cooler driving circuit

To prevent closing as duplicate immediately, there is the list of the most relevant questions: How to drive a Peltier element? Driving a Peltier w/ PWM or analog out Driving a Peltier element with ...
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How can I wire four Peltier modules in parallel with current limiting?

I am currently working on a project to cool different materials for a local young student program with engineering. My thinking was to attach Peltier modules to different materials and, using an IR ...
callen12's user avatar
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Controlling voltage of a device (Peltier cell) without PWM and with high current (max 5 V, 1 A)

I would like to be able to control the power of a Peltier cell, the TEC1-04901, (5 V, 1 A) in such a way as to control its temperature. I have already tried using a PWM control using a transistor ...
Massimiliano Ferrari's user avatar
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1 answer
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Thermoelectric cooler control point

The two operating hot side temperatures in the Peltier module data sheets are 27° and 50°. When connecting the thermoelectric cooler, how do I get the device to operate at a specific hot side ...
TALON SEWNATH's user avatar
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Can the heat sink on a Peltier module be too large?

I need to cool a small container with a 5v power supply. Let's say I use a common TEC1-12706 Peltier unit. Normally it's around 2 ohm, so ~60 watts at 12v. That equates to about 10w at 5v. Which is ...
CaptainCodeman's user avatar
4 votes
1 answer
769 views

Why is my Peltier module hot on both sides?

I've bought a TEC-12706 and used a 12V battery. I attached heatsinks and fans on both sides. The two sides get very hot as soon as I apply electricity to it.
Sam's user avatar
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Dual 4-20 mA inputs to voltage ramp

I'm trying to take dual 4-20 mA signals and use them as a heat/cool signal for a Peltier module. I have an integrator but I'm trying to find the best way to decipher the dual signals and turn them ...
Kieran Clifford's user avatar
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141 views

How can I measure the internal resistance of a thermoelectric generator?

How can I measure the internal resistance of a thermoelectric generator? Can I use a standard multimeter? I am using a TEC1-12706B thermoelectric generator. I tried to use a standard multimeter to ...
Phạm Sáng's user avatar
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131 views

Peltier cooling a 4 cubic foot mini fridge

After doing a fair amount of research I figure I should ask knowledgable people on this topic. I do know that sadly Peltiers are not that efficient. The problem at hand, I have a off grid solar ...
ForgivenCreation's user avatar
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137 views

Temperature control with Peltier device and temperature controller

I am working on realizing a temperature controller using an Peltier device, H-bridge and temperature controller. My temperature controller has a PWM duty cycle that (at 20 kHz) goes from -1000 (...
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Peltier Module Heating Problem

I am employing a small Peltier module with Arduino as its power source. In order to achieve a temperature of 80°C, I require 4.4V. Despite supplying 5V through Arduino, the module is not generating ...
Kiran Shehnaz Kaur's user avatar
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75 views

Peltier-based liquid cooling system

I-m doing a liquid-cooling project for fun, and, well powering it and cooling the hot side seems borderline impossible. I need some help. To clarify. This is literally only to cool water, and not to ...
Александр Ананьев's user avatar
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Setting the parameters of PID for 10 °C set point

I have a PID controller (REX C100), connected to a TEC1-12706 (Thermal Electric Cooling) and a thermocouple K-type. I want to set 10 °C on my PID. The problem is that the actual temperature in PID is ...
Hamed's user avatar
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Simulating TEC current control input for MAX1969 Peltier driver

I am trying to simulate the control loop used to drive the CTLI pin of MAX1969 shown in the figure. In this application, a DAC is used to set the temperature. I used a regular resistor to represent ...
BobaJFET's user avatar
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Peltier linearity and equalizing control of heating and cooling directions

I need to change between heating and cooling with a Peltier, controlling this with PID. I've read a ton of information on Peltiers, looked at their datasheets and despite of this, I still cannot ...
irilinir's user avatar
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PID control of a reversible Peltier (using Arduino PID_V2 library)

I have a box of water, which temperature I have to regulate to a ramping setpoint which could go both below and above the ambient temperature. So I have decided to use a Peltier for both cooling and ...
irilinir's user avatar
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How much pressure can typical TEC modules withstand?

Since I have not found an answer online. Nor any data sheets specifying, I can conduct my own test. But why not then post it online for others to see, I'm sure others will be searching it in a ...
Google Admin's user avatar
1 vote
0 answers
109 views

4W Electrical DC power from propane

I'm looking for a way to generate around 4W of electrical power (12VDC, 350mA, to be specific) with an efficiency of around 10% in a small and safe package. The background of the question is that I ...
Beat's user avatar
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Peltier not consuming enough current

I have two water loops, one to dissipate heat and one that cools water. Both are closed loops. I have four 12706 Peltier modules connected to a switching power supply that can deliver 12 V and 30 A. I’...
acanessa's user avatar
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221 views

Too low output voltage of MOSFET

I'm trying to create PWM-based control system for Peltier elements, but some troubles was appeared. The max output voltage is about 8 V, but I was expected 27 V. The PWM frequency is 50 kHz. And I don'...
Mari's user avatar
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1 vote
1 answer
230 views

Temperature control of a system with variable setpoint and variable outside temperature

I'm building an insulated box in which I have about 5-6 liters of water which will be cooled/warmed by a Peltiers, driven by variable current. The setpoint will vary between 16 and 26 degrees C, and ...
irilinir's user avatar
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64 views

Powering a grid of peltier tiles using a power supply

I'm trying to supply power to an 8x8 grid of peltier tiles from a power supply that provides 3-15 volts, with a max current of 40 amps (the power supply doesn't allow me to limit the current). I want ...
Suyog Joshi's user avatar
1 vote
1 answer
42 views

Can I power multiple devices from a single Centralize Power Supply Adapter? [closed]

I want to power in parallel 10 Thermoelectric Cooler Peltier DC12V 3.3Ω 2 water pump DC12V 3.7A using 12 V 40A Centralize Power Supply Adapter Will this work fine? Can my power adapter provide ...
TALLER JOHN MICHAEL T._CS2C's user avatar
1 vote
1 answer
230 views

LC damping for controlling Peltier element

I am trying to control my Peltier element with a H-bridge motor driver, namely this DRV8873. My TEC is rated at 128.7 W, 13.1 A, 15.7 V. My controlling signal is PWM at 100 kHz. I have a pair of LC ...
Michael's user avatar
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How to calculate the correct values ​of the coil and capacitor for an LC circuit and what type of capacitor to use?

I designed a complete H-bridge using four MOSFETs, to be able to control the supply voltage of a Peltier cell. I put a 1 μH coil in series with the Peltier to work as a small filter and I use an INA ...
WalterPH's user avatar
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1 answer
241 views

Thermally insulating peltier cell [closed]

I'm trying to build a small cloud chamber using peltier cells. I've been using a TEC2 25408 and a cooler master 412S. So far I've tried to measure the lowest temperature the peltier can reach by ...
Luke__'s user avatar
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49 views

Electrical Project containing parts with different volts/amps rating

So I have a small project just for fun. Includes a Peltier module , and a small cooling fan like the ones used in a pc for airflow. So my question is since the peltier module have a different rating ...
AnnoyingGarlic's user avatar
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392 views

Peltier cooling with a fan

I'm not sure if this is the right section to ask this question (or if I should rather have posted it on Physics stack exchange). Anyway, I'm trying to build a cloud chamber that relies on Peltier cell ...
Luke__'s user avatar
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Heating and cooling a liquid in a test tube electronically

I am automating a small-scale laboratory chemical process. One step is thermal equilibration of DNA in about 0.5 ml of aqueous buffer, which involves raising the liquid to 90°C and then immediately ...
Autodactyle's user avatar
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2 answers
73 views

Efficiency of Peltier cell vs driving topology

I have a problem with a Peltier cell, I use the same Peltier cell in two different applications, in one it is powered via an H bridge like this: while in the other application, since it only needs to ...
Federico Massimi's user avatar
1 vote
1 answer
114 views

How small can an inverter air conditioner be?

I am making a small temperature controlled environment in a 35x35x16cm plastic box. The ambient temperature of the room will be around 25° C, but I want to see how my electronics behave/shift their ...
Christianidis Vasilis's user avatar
1 vote
1 answer
136 views

How to choose a Peltier module and heat sink to cool a MOSFET down to -40°C? [closed]

I need to cool a MOSFET down to -40°C, but I really know nothing about thermal devices. Could anyone teach me how to calculate the specific parameters that can help me choose the right Peltier module ...
zpyzpy's user avatar
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1 vote
1 answer
2k views

How should I power a peltier module?

I have this peltier module: Link And I am having some trouble understanding how to power it. I have a 5V 3A power supply, but whenever I hook up the peltier module to this power supply, it starts to ...
Anthero's user avatar
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1 vote
1 answer
65 views

How to power a peltier element with something portable?

Actually the question is bigger. I will start from the beginning. I want to make a surface, which I can carry in a bag with me, and when I turn it on I want a given part of the surface to become very ...
Angel Miladinov's user avatar
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0 answers
63 views

How can I sense the output voltage of an H-bridge using a microcontroller?

I have developed a circuit to control a Peltier cell using a H-bridge controller with two PWM signals. The brain of the whole project is a PIC24F, the circuit works (in this project I usually change ...
WalterPH's user avatar
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0 votes
1 answer
295 views

Two Synchronous Buck Converters as Bridge Drive to Peltier

I am looking to control a peltier without using PWM at the device leads (filtered PWM). The usual circuits I have seen is by having a regulated supply as the source to the top FETs on an H-bridge to ...
joe's user avatar
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1 vote
1 answer
73 views

Powering a peltier element [closed]

I am trying to design a hot/cold cup holder using a Peltier device. I am using a DPDT switch to switch the current flow. I am running from a 12 V 2.0A power source for testing. The issue is when the ...
Cal Marshall's user avatar
3 votes
2 answers
196 views

Peltier module use improvement

I am trying to setup a box, where I can keep the temperature to constant/near constant number of degrees. I have chosen to use a Peltier module for cooling but the result isn't satisfactory. A similar ...
thermike's user avatar
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0 answers
87 views

PLC 0 - 10 V peltier element

I want to control the peltier module with an PLC analog output. My PLC analog output gives me a voltage between 0 and 10 V. The peltier needs 12 V and 6 A so I was thinking of using this converter ...
stribor's user avatar
1 vote
2 answers
539 views

MOSFET gets too hot when controlling a Peltier

I want to control a Peltier element with an Arduino. The idea is that I take the PWM of Arduino, turn this into analog with a low-pass filter (not in schematic) lower this voltage with a voltage ...
Jorick Marijn's user avatar
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1 answer
74 views

TECs: parallel or series? [closed]

My project is regarding the cooling effect of TECs. I am from a mechanical background. My question is: what happens when TECs are connected in series or in parallel? If one configuration is better ...
Arun Bhaskar Karanayil Anil's user avatar
3 votes
2 answers
175 views

Voltage regulator output increases significantly when step-up converter runs

I'm using the LTC3108 step-up converter to charge a supercapacitor from a thermoelectric generator. The output voltage drives a 1.8V regulator (S-1318) which is enabled once the voltage reaches 4V (...
Anthony's user avatar
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1 answer
564 views

How do I produce a steady DC voltage from a PWM supply?

I am trying to control a 12V Peltier (6A maximum current, but I am unlikely to need to use anywhere near that) element with a 5V PWM supply (from an Arduino at the moment). I am using a logic level ...
Gravitate's user avatar
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1 vote
1 answer
459 views

Optimizing Peltier water cooler set up

Application 20 gallon aquarium cooler Ambient temp: ~22C Tank target temp: ~17C Tank houses an axolotl and needs to be kept at cooler temperatures then currently in the basement. Current Peltier Set ...
Alfiero's user avatar
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4 votes
2 answers
2k views

Can I make a homemade Peltier module with constantan wire?

I'm trying to make my own Peltier module. I ordered constantan wire, which I used as N-type semiconductor and iron wire as P-type. I made this and powered it with 3V, but without response. What am I ...
PO12's user avatar
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0 answers
124 views

How to maximize heat dissipation on Peltier tiles

I am not an electrical engineer by any stretch of the imagination, but I do like to tinker. I am building a liquid cooling ramp (also known as an ice luge) liquid gets poured into the top of the ...
Tony Conz's user avatar
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60 views

Gasoline generator + Peltier configuration

I have a DIY cooler box with Peltier element 12V/3A/27 watts and want to connect via power supply to gasoline generator with output 600W at 5A max. Would that be a problem and not supply my Peltier ...
Bonyo Bondov's user avatar
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1 answer
138 views

TEC cold side temperature decreases, then increases rapidly [closed]

first post to this stack exchange. Self teaching on TEC circuits. I bought a diymore TEC1-12706 12V 60W 6A. Note no heat sink installed on the TEC. To test the TEC I put together a series circuit as ...
Kirk Woellert's user avatar
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1 answer
194 views

Peltier device stopped working

The peltier device worked well when i submerged the hot side in a frozen alcoholic gel, but then when i unplugged it from power and washed the device with water it stopped working. It doesn't get hot ...
Mahdad Borhani's user avatar

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