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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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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’...
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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'...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 (...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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How to reverse voltage 12-24VDC to use a peltier element for heating and cooling
I'd like to use a standard peltier element as a heater and a cooler. The specs should be something around 12VDC, 30W. Electromechanical relays are not an option, the peltier should be used to regulate ...
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Bodyheat powered microcontroller
Old Post and even older Post I came across before posting this question. The answers by McMahon and Alexeev are pretty much what I was thinking:
human energy source: ~100 W
skin surface: ~1.75 m2
⇒ ~...
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What wire size to be used for Peltier cooling
I'm making a project with three Peltier in parallel (12V & 6A) each (TEC 12706) for cooling.
I would just like to know the wire size to be used in (AWG or mm2), for running project smoothly.
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Peltier stopped working
I am creating a sort of food cooler using a tec1-12706 peltier element since i figured the casing where the food goes in is already made of an heat/cold conductive metal. The cold side was not ...
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Circuit Design for Peltier Cooler and Microcontroller
I Currently have a 100 Watt Solar Panel, Charging a 12v, 6Ah Lead Acid Battery using a generic solar charge controller. I am looking to connect a 12v. 6amp peltier unit, as well as a raspberry pi, to ...
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How do you calculate total current draw in parallel?
If I have a 12V power supply, a 6A TEC, and a 0.15A fan running in parallel, how do I calculate total current draw?
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How do I calculate current when using a power supply?
Edit:
I’ve just learned that a 500mA PSU is not going to necessarily output 500mA; it’s not a constant current PSU. It CAN output that much, but only if its components are asking for that much. It ...
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How much electricity can be generated from stove's heat?
Yesterday I asked a whether it is profitable to put a thermoelectric generator (TEG) between a stove and a freezer regarding electricity terms. I was missing a point, which was that heat was being ...
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What if we attach a TEG between a freezer and stove?
I have been thinking about this, that if we attach one part of a thermoelectric generator between a freezer and other part on a stove. This would create a temperature difference and generate ...
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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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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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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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