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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Peltier module not cooling

I have a peltier (12705) and I have created adequate cooling for the hot side and a small heatsink and fan on the cold side. The cold side reaches -12°C. I have a cutout in a small box that the cold ...
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47 views

Driving a Peltier Module via N-channel MOSFET H-Bridge

I'm working on a circuit to control a heating/cooling element (Peltier module) using an H-bridge. I'm using FDP8447L for that purpose. My Peltier is rated for 6 amps current and 15.4 Volts. The gate ...
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42 views

TEG (seebeck) to drive small brushless motor?

is it possible to drive a small (~ 24x30mm) brushless motor with a small (40x40m, ~0-3V) TEG module? I am trying to educate myself on brushless motor function and control but can't find much info on ...
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Basic Peltier driver causing horrible voltage noise

This is a very trivial question but I am lost. What I am doing: Just for fun, I did a Peltier water heater (the idea was to cool the driving MOSFET with the Peltier cold side, which pumps said heat to ...
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25 views

Peltier not cooling properly (draws less current than usual)

I have two peltiers (12710) bought at same time,few months ago. It worked properly months ago. Now, when I apply same voltage across them (with both peltiers having similar heat sink configuration), ...
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LC filter for TEC (Peltier)

I am designing TEC controller which both COOL and Heat. This will be control with PWM from microcontroller. I have two questions: Spec: TEC will be run between 6V-12V max current 2.5A What type of ...
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43 views

Cooling 1.5 cu ft with a TEC1-12715 Peltier

I'm trying to modify a standard cooler (about 1.5 cu ft) so it no longer requires ice. I want to get the interior to 35 - 40F assuming the ambient temperature is about 75-80F. However, I don't have ...
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70 views

Peltier suddenly stopped working

I set up a device with a Peltier module squished between a small and a large heat sink. The large heat sink is on the hot side, and the small one is on the cold side. I was running the device on 12v, ...
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79 views

What are the limits of Peltier cells?

I am doing a project for the university. The project consists of a temperature controller in a glass chamber. The objective is a controllable temperature in a range of 0 - 100 degrees Celsius. The ...
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51 views

How can I use PID to precisely control a Thermoelectric Cooler (TEC) while also supplying 24V?

I need to use a TEC to stabilize the temperature of an instrument. My thought is to have a thermistor provide live temperature data to a PID controller which would stabilize the TEC to a set ...
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92 views

Using TEG to generate electricity for cooling car interior parked in sun

I am working on how can I cool down or normalise interior temperature of cars parked in sun for too long as they get real hot. So I thought if this could be done by thermoelectric generators. I don't ...
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53 views

Peltier not cooling

I am looking for a little help as I am trying to make a small Peltier cooler and having a little trouble. FYI I have very little idea on what I am doing just got an idea off of youtube and gave it a ...
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44 views

How can I calculate the power needed to increase/decrease the temperature of an object by x degrees when using a Peltier module?

I am working on a cooling system using 4 Peltier modules. I would like to somehow determine the power I need to reduce the temperature of the object attached to the Peltier module by x degrees Celsius....
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Silicon die on Peltier device with COB wirebonding

I have a camera sensor (bare die) that must go on a very tiny PCB that also contains electronics for data serialization that dissipate enough power to make the PCB pretty hot (40-60 deg. C). I want to ...
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266 views

Driving a Peltier element with PWM

I'm trying to drive a Peltier element using the VNH2SP30 motor driver, switching at the Arduino's PWM frequency of ~970 Hz (which is extremely low, but I'm planning on increasing the driving frequency ...
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114 views

Peltier Quick Heating and Cooling

I am using Peltier Module to quickly heat and cool down the object placed on it to a particular temperature. My target is to heat the object to 90 degrees and then cool it down to 54 degrees and then ...
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71 views

Fixing the temperature of a large metal plate

I need to hold a 60x60cm aluminum panel at a fixed temperature of 35 degrees Celsius. I thought about using Peltier elements but I'm not sure how easy it is to maintain a constant temperature with ...
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30 views

How is the current drawn by a Peltier determined for a given voltage and given Th?

I have 12V 20A SMPS for building a cloud chamber. I have a question about configuring the Peltiers. I don't know how much current a Peltier draws for a given V at given Th (hot side °C) In my ...
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92 views

Using boost converter and battery to power Peltier device

I designed a boost converter using a 555 timer in order to power a Peltier device. This is mostly just for fun and to understand circuits a bit better. I ordered all the parts so that they are the ...
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69 views

Why my power supply drops voltage when peltier is connected?

I had these 12v 2a power supply(adaptor) and rgb box labeling INPUT: 12VDC OUTPUT: 12v 6a(Max Current). I can light up led without problem but when I connect peltier, the supply is dropping down and ...
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171 views

Peltier reverse polarity

I am thinking about using peltier for both heating and cooling to maintain desired temperature profile in small area (2ft square at max) Can continuously changing polarity damage peltier module and ...
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I have a 12v 6ah Peltier Mini Fridge will using a 12v 10ah power supply harm the Peltier? [duplicate]

Hi all I have a commercially made mini fridge which displays it power requirements of 12v DC 6ah power supply. I have a 12v DC 10ah smp power supply. Can I use it with the Peltier fridge without ...
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264 views

How to test a Peltier module TEC1-12705 to determine if it works as intended?

Background: The module comes from a 70W mini-cooler which doesn't really cool anymore. I took it apart and got the module out, I could read the model TEC1-12705 from the module itself. The ...
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29 views

Peltier Power supply problem

I am doing a project using a peltier TEC1-12706, however I am stuck on powering up the device. I am using a computer adapter power supply(20V;90W) and I it coupled with a synchronous buck-boost module ...
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72 views

Thermoelectric Generator Schematic

On my other question I asked about how could I regulate a TEG like this: for a 12 V, 10 W load I have. My first idea was to use some resistors, a zener diode and a linear voltage regulator. But ...
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47 views

Thermoelectric Generator Impedance Matching

I have a TEG that has an output IxV curve like this: That should mean something like this: I need a simple circuit to regulate the voltage around 12 V while enabling at least ~10 W for some load I ...
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106 views

Idiomatic way to control output voltage of buck/boost converters using microcontroller

I'm trying to design an appliance that efficiently regulates power to some Peltier elements. The manufacturer states that optimally, you should drive these with regulated voltage and not PWM. They ...
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116 views

EM noise from Peltier cooler

I'm considering cooling a very sensitive photodetector with a Peltier module. I have been told by a colleague Peltiers coolers produce electromagnetic noise, but I am wondering whether this is due to ...
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36 views

Peltier cooling calculation - Help ! :)

I have gone through many of online blogs and websites for guidelines about selecting Peltiers but somehow I am still lost in the middle. I am still missing major numbers to be able to select which ...
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177 views

How to combine H-bridge with high current pwm smoothing filter

I would like to drive a peltier (rated max 12V, 5A) with three considerations: i want to control the voltage absolute value with a PWM signal from an arduino (30kHz), the voltage across the peltier ...
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51 views

Identification of unknown peltier element

I recently found an old, unused peltier element in our lab, with dimensions 40x40x4 mm³. Unfortunately, no type number is visible on it. By connecting it to a power supply I could identify the hot and ...
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507 views

How to effectively control a Peltier device with MOSFETs? (general design and heat issue)

First, I'm still quite a novice in the electronics, so may miss some basic knowledge, but trying to learn anyway. That being said, here's my situation: Goal: Control of the direction of the heat ...
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91 views

Understanding thermoelectric generator and Ohm's law

I understand the simple terms of U = R * I in the context of a constant voltage - which is approximately the case for most consumer electronics, where the ...
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4answers
88 views

How to regulate temperature of an IC/PCB -in a vacuum

I have to regulate the temp of an IC. (70deg. C) The part will be in a vacuum chamber. Electrical connections can pass in-out of the vacuum chamber through a port (plenty of connections available.) I ...
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72 views

PID controller for a very wide temperature range (∆T=190°C)

I'm designing temperature control system based on Peltier elements. And it's needed to work on a very wide temperature range - from below zero to more than 100°C. So there is two work modes - cooling ...
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102 views

How many Peltier will be connected to obtain 18V and 1 amps?

I am trying to generate electricity through a Peltier. I could supply heat of 120-degree Celcius to the hot side and 0-degree Celsius to the cold side. I am thinking to use TEC1- 12706 Peltier whose ...
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116 views

Trouble designing compensation network for TEC Controller using Analog ADN8831

I am designing a circuit to control a TEC using Analog's ADN8831 as the TEC Controller chip. My application requires more TEC current than the ADN8831 eval board can supply so I built a test board to ...
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39 views

How do I deal with Seebeck Effect while measuring resistance with 4-lead ohmmeter?

I'm trying to measure the DC resistance of an inductor I made out of AWG 11 wire. From my calculations its impedance should be around 0.0012 ohm, and the ohmmeter measured precisely 0.0012 ohm. But ...
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95 views

How to check current of Peltier module?

I recently ordered this Peltier module so that I can make a thermoelectric generator (using heat to create some voltage.) How can I measure the current produced using a multimeter? I'm relatively new ...
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273 views

IRFZ44N getting very hot in Peltier driving circuit

I have got a question about my Peltier driving circuit. First of all this is a drawing of my circuit: simulate this circuit – Schematic created using CircuitLab I am confused because only 1 of ...
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110 views

I'm making a small refrigerator with a Peltier module but I can't find a heatsink. Will it work if I only use thermal paste and don't use a heatsink?

I'm making a small refrigerator with a Peltier module but I can't find a heatsink. Will it work if I only use thermal paste and don't use a heatsink? Can I use a 9 volt battery for a 12 volt module?
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Looking for help wiring Peltier hear/cool in vehicle w/o the hvac console using dpdt relay

I am trying to wire seats from a '12 Lincoln MKS into a '02 4runner. Peltier & blower/fan were controlled via CAN Bus & HVAC module in Lincoln. Not having that I am needing to devise a relay ...
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110 views

Unconventional TEC peltier use (heating)

I'm going to be breeding reptiles, so I'll need an incubator. I'm currently thinking about using tec coolers as a heater inside an insulated box. The issue I'm thinking I'll have is that with a cheap ...
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165 views

Feasibility of Sub-Zero Peltier Cooler

So I want to build a micro-cooler (Cooling volume of 1l) to cool a block of tofu from 25C to -5C within 1-2 hours. I'd like to do this with Peltier coolers and I wanted to get some insight from anyone ...
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122 views

yet another burned MOSFET issue in H-bridges

I'm trying to get into how H-bridges could be utilised in a heating/cooling peltier module for a personal fun project; I designed the circuitry (shown below), which BTW your feedback and suggestions ...
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365 views

Using a Peltier element to power an Arduino

I got myself a Peltier element and want to use it for an IOT project. What is the best way to use the Peltier in order to power an Arduino or something similar every few minutes? (For my project it ...
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141 views

6 x TEC1-12706 in series cannot reach desired amperage, why?

]I have 6 EC1-12706 in series connected to a variable DC Power Supply (rated with maximum 30V and 10A). I set the power supply to 30V and 1.50A. My problem is that the DC Power Supply when the output ...
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51 views

Peltier Kits Cooling [closed]

I bought 4 12V Tech-12706 Peltier Kits Room Temperature Average 30' C How many Kits I have to install to cool a Insulated ACP Sheet Box Area of 3 Cubic Feet / 90 Litre ? I tried Calculator but could ...
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36 views

LED lighting using peltier modules

I want to use a peltier element to power some small test LEDs. The power source should be a TEC (thermal energy converters) or A TEG (thermal energy generators) element. I see a lot of people that don'...
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86 views

Fixing hot plate and the heat sink, which thermoelectric module would produce more power?

Thermoelectric coolers (TECs) are typically used to generate temperature difference. Thermoelectric generators (TEGs), however, are used for power generation. While TECs are much cheaper than TEGs, ...

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