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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Will thermocouples sharing a common wire create inaccuracies during measurement?

Specifically, I've been working with pre-existing temperature cables which are T-type thermocouples which share the same Constantan wire. My question is if one of the thermocouple junctions is heated ...
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Peltier Driving Circuit

I am driving a peltier (thermoelectric heater/cooler) using a DAC (MCP4725), Arduino mega, quad-opamps to shift/invert the DAC voltage (LT1885) and 4xOPA549 (2 per peltier). I use PI control and ...
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3k views

Peltier driver with IR2110

I'm trying to drive a Peltier cell. The driver must allow both operation modes (cold/hot). To achieve this i'm using filtered 3.3V 100KHz PWM from a microcontroller to drive an H-Bridge (as far as i'...
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How to connect the Peltier module to TEC W1209?

I am trying to control my Peltier module using the W1209 TEC. I set the P0 to H, so that it should provide voltage to my Peltier module until the temperature reaches the set temp. The LED turns on ...
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18 views

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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1answer
63 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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78 views

12VDC Switching to 17VDC high amerage

It's been years since my undergrad work as an EE. I am a physicist and medical researcher now, but, as a startup, we all take on anything we can. Let's face it... 12VDC high current PSU's are cheap. ...
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235 views

Need help in wiring two Peltier Plates together

I have two of the BXQINLENX 55x55MM 7V 1.25A TEG1-241-1.4-1.2 Thermoelectric Power Generation Peltier Modules. I am trying to make something like an Ecofan by sandwiching them between one aluminum ...
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248 views

Overvolting Peltier

I currently have a 12v 6A Peltier bolted to 2 heatsinks, with 2 separate fans. The old PSU I used for this system went kaput, so I would like to find a temporary replacement before I buy a new power ...
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55 views

novice user needs assistance for three peltiers being connected to a single power source

I am a novice user, and I am not very familier with Peltier setups, for my old CCD astonomy camera. The Peltier that was broken in the camera is not supplied by the manufacturer anymore, nor will they ...
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349 views

how to control peltier element with microcontroller

I need a little help from experienced people. I want to control a Peltier element with a microcontroller, with PWM. May? The peltier element has the following parameters: Imax=8.3 A, Vmax=3.8V.Ok... ...
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205 views

Peltier question power, pwm and voltage

There are little to none information about Peltier in the internet, especially in team of powering it, so here I try to ask few question about it. Here is the particular one that I am referring to: <...
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682 views

Peltier Circuit Components

New to electrical in general, so be gentle... Looking to drive a TEC1-12706 as a cooler/heater, using 24V, 500 Hz PWM as input. To avoid thermal cycling caused by PWM, incorporating LC filter. In ...
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128 views

Peltier Module constant time and thermal Load

Hi everyone I am new to this forum. I am doing a project where I need to control one of the sides temperature of a Peltier device against human skin. So one side is in contact with the skin, and the ...
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PID temperature controller with Arduino using a NTC thermistor and a Peltier Cell

I'm trying to control the temperature of a LED laser (which have a thermistor as temperature sensor and a Peltier Cell, both integrated with the laser) and what I'm implementing is a PID controller ...
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255 views

Peltier broke? Or do they just do this?

I power the peltier on 12v with a heatsink on the hot side The hot side gets lightly warm and they cold side gets nice and cold except one part, The very top right corner on the cold side is hot, the ...
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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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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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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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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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428 views

How to determine the maximum voltage and current ratings of a peltier element?

I recently bought a peltier with no ratings. None at all. On hindsight, it was probably not the smartest thing to do, but is there any way I can determine the maximum voltge and current values at ...
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41 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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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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1answer
52 views

What is the practical difference between Peltiers of different rated current, e.g., TEC1-12706 vs TEC1-12703?

I'm no expert, but from playing with Peltier modules I understand that, for a constant temperature difference between the two sides, they behave almost as a resistive load, with an almost linear ...
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43 views

Performance of thermoelectric generator

I would like to build a self-powered device on the surface of a vehicle without modifying it. It is possible to generate enough power though thermoelectric generator by the temperature difference of ...
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1answer
26 views

Peltier Heat Generation and Dissipation

Trying to retrofit an old Peltier wine cooler and I a question about the wattage and heat calculations. If I have a 12V power source (switched) so the maximum Wattage it can convert to heat is (105W)...
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28 views

Peltier heating/cooling

I live in a reasonable warm place, which requires me to run an AC all day, but I also need to use hot water for shower and other purposes. In this regard, I had the following idea, though I am unable ...
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63 views

General Peltier (lack of) cooling - why?

The physics here are beyond simple. 1ml of water requires 4 watts of cooling to drop 1 degree C. Thus: 30ml x 4W x 33c = 3.96kW (IE cool 30ml by 33c needs 3.96kW of cooling) The TEC01-02015 spec ...
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55 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 ...
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Peltier Cooling

I am trying to incorporate a peltier module on a relatively small space. Is there a way to incorporate a 40 x 40 mm heat sink (+- 10mm) to a 40 x 40 mm peltier module in such a way that it can run for ...
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63 views

Peltier behaves strangely

I've been trying to test my Peltier moodule (tec1-12706) with 2 1.3V batteries (2.6 in total in series) connected parallel to the module.. ...
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1answer
50 views

Thermoelectric Cooler sensor

My team and I are testing our Peltier Thermo-Electric Cooler Module+Heatsink Assembly - 12V 5A from Adafruit. We are using an external power source and sensors to get readings for the current, voltage,...
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91 views

Assemble Peltier Cooler to Li-poly Rc Battery

I have procured a thermoelectric cooler (TEC, this one) and my purpose of the TEC is to produce current for the Li-poly RC battery to increase its battery life. The Li-poly RC battery has 7.4V stated ...
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71 views

Converting the output of a Proportional Control System to a meaningful drive of a Peltier

Trying to create a PID controller for temperature control using a Peltier element, I decided to take it step by step and create first the Proportional and then the Integral and the Derivative ...
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81 views

Is it sufficient to cool 4 TEC1-12708 (Peltier)?

Recently I tried to cool water with one TEC1-12706 (waterblock+tec+cooler) but for a lots of reasons (that I am now aware) it didn't cool water (1L in a closed cicle) under or even near 0ºC. I ...
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768 views

Confusing peltier efficiency COP/Volts and COP/Amps graphs question

Is peltier efficiency (COP) based on current and not voltage and could I have any voltage I want and get a high COP if I limit current? Whats confusing is that one graph shows efficiency based on ...
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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 ...
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176 views

Using Op-amp as comparator with low supply voltage (1.1v)

As part of a school physics project my group was given 2 TEC1-12706 and was told to find some way to generate electricity via Seeback effect and recycled materials. Due to low efficiency of the TEGs, ...
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301 views

Can TEC1-12706 be damaged by running on low current?

I'm using a HDD power supply of 12V 2A. The plate stopped heating or getting cold. I tested the power supply which is working fine. Tried changing the power supply by mobile charger with no effect. I ...
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937 views

Running a Peltier water cooler from a battery

I'm planning on using this unit: 12V Peltier water cooler for a portable heater/cooler. As such, I would need to run it off a battery. Based on what I've been reading, the best choice is a deep-...
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How does the power consumption and cooling capacity of a Peltier refrigerator change when the interior is made reflective?

I've a small Peltier cooler which I used to store some chemical stuffs. So, I recently modded the design to make it more bigger and improve its cooling + insulation. I've added an aluminium piece ...
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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 : ...
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What are the seeback specs for common production peltier elements

I been hunting for weeks for the seeback output for the most commonly sold peltier elements. I found one set of specs for the TEC1 - 12704 branded by HP rated at 49mv 11ma per degree of temperture ...
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470 views

Beginner, how to connect a rechargeable battery to be able to power a 12 Volt Fan and a 5 Volt TEC/Peltier (or 5 Volt Fan/Peltier)?

Firstly, I want to say thank you for looking at my question. I am trying to make something for my nephew, but I really don't have much experience in electronics, even though I have been researching it ...
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38 views

Thermoelectric cooler working type

I have some questions regarding TEC. What if, I operate TEC without any cooling fan both side. In this condition for how much time it can run. What if, I operate TEC with one cooling fan at cold ...
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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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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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66 views

TEC Design and Qc generated?

i've been working on a project in order to cool a thermal box by using peltier elements PID controlled.. I've tried different designs on how to obtain maximum efficiency according to my rig, however ...
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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 ...