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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.

-3
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0answers
18 views

Which Size Heat sink use for peltier coller heating & cooling Side? [closed]

My Peltier Model, TEC1-12710 , Now i Want to know which Heat sink size i use?
3
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4answers
152 views

TEC1-12706 Peltier run from diffirent voltages

My question relates to a video I saw on youtube. In this video, the user is cascading 3 TEC1-12706 peltier modules to achieve temperatures of -50 on the cold side of the cascaded peltier. The TEC1-...
6
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3answers
541 views

How do electrons carry thermal energy in Peltier coolers?

I've read that when electrons enter from metal to semiconductor type N, they gain thermal energy and make that side cooler and the reverse happens when they leave semiconductor to the conductor. Why ...
0
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2answers
36 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 ...
0
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0answers
24 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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0answers
42 views

Calculating the Duty Cycles for the Syren 10A Motor Driver

I bought the Syren 10A to drive a Peltier element using python and a raspberry-pi zero + 12V power supply. After reading and talking I concluded to use the Driver in the R/C Failsafe Timeout Mode ...
2
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0answers
50 views

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 ...
2
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1answer
65 views

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 ...
1
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0answers
48 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 ...
1
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2answers
61 views

Bipolar switched-mode power supply

I'm looking to design a power supply that, given 24V input, can deliver +/- 0-12V output at 3A. It will be used to drive a Peltier module in either heating or cooling mode, which is why it must be ...
1
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2answers
49 views

Thermo Electric Can Heater / Cooler Heating vs Cooling Speed

I recently purchased a cheap (~$25) 36W thermoelectric cup holder designed to heat or cool a soda can sized object. It works very quickly for cooling and draws about 3A at 12V. For heating, it heats ...
0
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1answer
35 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 ...
2
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2answers
86 views

Buck-converter dynamic output-voltage using digital-potentiometer

I am driving a load at 40 V, 4.8 A, and would like to dynamically change the voltage being supplied to it, ideally creating a 2-40 V range with increments of <0.1 V. To achieve this, I am thinking ...
0
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1answer
83 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 ...
1
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2answers
65 views

Is Peltier Cooler Good for Outdoor Application?

I have a Raspberry Pi 3 w/ an Intel Movidius Neural Network Compute chip attached via USB. It has recently come to my attention that I may be asking the Movidius chip to perform too much work and as a ...
2
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10answers
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 ...
1
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1answer
118 views

What can you tell about our circuit diagram? Any suggestions?

This is our circuit for our research which is the conversion of heat to electricity. The TEG module will convert the heat to direct current. It will give energy to the voltage booster moduleto and the ...
-1
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5answers
1k views

How many cubic feet can 1 peltier cool efficiently?

I want to build a mini fridge, however, I want to build it a bigger than the ones showed in the tutorials I've watched. For that I assume I need more than one peltier to cool it. However, for that I ...
0
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2answers
1k views

How efficient is a Peltier TEC1-12706 and TEC1-12715

I need to know some details about Peltier coolers before moving into making an air-conditioner. I have watched several videos on YouTube that demonstrate making air-conditioners with Peltier thermo-...
1
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0answers
189 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... ...
1
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3answers
206 views

Current limiting resistor on peltier element

I have a 12v/22A DC switching power supply and 9 peltier elements rated for 12v/6A. I would like to limit current to 2A per peltier element. I don't know how to calculate the impedance (in ohms) ...
1
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1answer
55 views

High-Power H-Bridge - Heating Calculation

Background Hi there, I'm using a H-Bridge to drive a thermoelectric cooler (TEC or Peltier) module. I'm not here to discuss control circuitry/drive voltages/slew rates/switching losses, which I know ...
1
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0answers
89 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: <...
0
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1answer
58 views

Is it possible to cool an acrylic sheet with a Peltier (thermoelectric cooler)?

I am trying to create a cooling stage that can maintain 4 degrees Celsius however the stage must be optically transparent. Will a Peltier cooler be able to cool an acrylic sheet, or will the low ...
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1answer
196 views

How to eliminate noise from Relay? [closed]

In my recent project, I am working with Peltier module. Now, here the main purpose of my project is switching between cooling and heating. And for that purpose, I'm using the 5V relay(2-relay) board. ...
0
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1answer
50 views

Thermo Electric Cooler(TEC) for ICs

I am designing a 9u rack server with optical ports. I want to implement Thermo Electric Cooler(TEC) for cooling the ICs(switches, FPGAs) on board, so that I can reduce the fan speeds. Is this a good ...
4
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1answer
307 views

Finding a 12 V Peltier module that reaches less than 0 °C on the cold side

I am making a small cooler box using a Peltier. At first, I used a Tec1-12706 without researching first, and it barely went under 12 °C at the cold side. I need a Peltier module that is 40 mm x 40 mm ...
1
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0answers
176 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 ...
0
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2answers
512 views

What do hot/warm wires mean?

I am making an electrical fridge for a school project. I am using a 12v Peltier cooler and using a 12v 30a power supply. I have all the wiring and everything already set up, and no matter what I ...
0
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4answers
260 views

Is it possible to use a heatsink without a peltier plate?

At the moment I am working on a project which implies LEDs for street lighting. I need to dissipate around 24 W of heat. In order to do so, I calculated how much heat is dissipated into the air, and ...
0
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2answers
433 views

Peltier not cooling water

I made a cooling unit with two peltier(12706) with hot side attached to heatsink with fan. And cold side with waterblock i.e (heatsink + peltier(hot side with heatsink) then waterblock then another ...
0
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0answers
26 views

Required Power Supply Driver for Peltier Module TEC12715? [duplicate]

I am making a Mini-Air conditioner based on Peltier TEC12715. I'm going to use 10 peltier elements for better cooling. 1 peltier module requires: Umax(V):15.4 Imax(A):15 Max power consumption (watt):...
1
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1answer
318 views

Driving a Peltier w/ PWM or analog out [duplicate]

I feel like this has been beaten around the bush in a couple other topics, but I am hoping to find something a bit more definitive. I am looking to control a Peltier thermoelectric cooler. I've got a ...
0
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1answer
41 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 ...
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3answers
147 views

Why Electro Mechanical Relay makes controller reset?

In my current project, I am controlling Peltier Element Temperature which is current controlled load using Arduino. I am controlling Temperature of Peltier by applying PWM to H-bridge. In addition ...
0
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0answers
106 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, ...
0
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4answers
94 views

How can I divert current to higher resistance components in parallel?

I am working on a circuit and I need to divert the current to higher resistance components in parallel without changing their voltage input. There are 4 thermoelectric devices (T1, T2, T3, T4), a ...
1
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0answers
65 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 ...
0
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0answers
77 views

Liquid Metal Thermal Compound doesn't work on Peltier, glides right off the ceramic, something I missed?

I recently used a liquid metal TIM, known as Thermal Grizzly Conductonaut, and the thermal paste would not "adhere" or stick to the peltier. When attempted spreading, the liquid metal glided off and ...
3
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2answers
1k views

Thermal Paste on Cold Side of Peltier Freezing and not transferring “Heat”, what gives?

I am running a peltier element, and on the cold side an aluminum heat sink to effectively spread out the cool surface to the maximum possible surface area. I just bought this new thermal paste: ...
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2answers
507 views

Liquid Metal Thermal “Thermal Grease” on a Peltier Element?

I was wondering if Liquid Metal Thermal Grease could be placed on a peltier's hot side to better conduct heat from the hot side to the heat sink. I know that aluminum is "Eaten" away by the thermal ...
1
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0answers
1k views

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 ...
0
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0answers
183 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 ...
0
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0answers
509 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-...
0
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1answer
65 views

Trouble with Turning Off/Powering Off two systems at once, how should I approach this?

I have an overall that I want to shut off completely with a flick of a switch; however, the system I want to shut off is comprised of two smaller, completely separate systems. Let me give you an ...
2
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1answer
761 views

How can I tell what amperage a 12V rated electrical device will run at 5V?

I am buying a TEC 12706, a thermoelectric Peltier. It's rating is: 15.4V 6A (maximum voltage and amperage). I want to run this Peltier at 5V and was wondering how I would convert this data to see ...
0
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1answer
124 views

Wire peltier device and fan to power supply

I have 6 12v, 6 amp, 60 watt peltier devices and 3 12v, 0.08 amp fans that I want to connect to a 12v, 40 amp, 480 watt power supply. This guy over here: https://www.banggood.com/AC-110V-220V-TO-DC-5V-...
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0answers
75 views

Confusing Peltier Power Draw [duplicate]

Essential Question: Which Peltier is the most Efficient for reaching coolest temperature, and is the 6V 2A peltier inefficient? I was looking into more efficient Peltiers for my project and tried to ...
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0answers
24 views

Suggestion about Peltier Efficiency With Current Power Setup [duplicate]

I am currently using the very arbitrary TES1-4902 to cool water (small amounts) using a 5V 2.4A USB Battery Pack (2 Peltiers TES1-4902, 2 5V 2.4 A USB Battery Packs = 5V 4.8A) Recently, it has come ...
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2answers
259 views

Will stacked Peltiers produce a greater dT? [duplicate]

I am using this peltier device to ramp an aluminum plate down to -10C in a vacuum environment. I chose this particular device because it had the largest 'Qout' of any single-stage peltier I could find ...