Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [heater]

103 questions
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votes
3 answers

Why such "Sloppy" heating element control in a hot-tub

I've noticed that the heater/pump on my inflatable hot-tub has a very "sloppy" thermostat. If I set it to maintain at, say, 37 degrees (C), it heats to 39, then goes off, until 35, when it comes back on again. It has a digital display showing the…
Lefty
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6
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2 answers

Using a PCB trace as a heater / Hilbert Curves

I'm considering making a PCB to use as a heater for a 3d printer bed. This has been common practice for ~10 years (https://www.thingiverse.com/thing:3919). I was playing around with KiCad and python, and made a PCB trace that could (in theory) be…
Raph
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6
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1 answer

Tuning of a PID loop for heater element

I built a controller for a soldering iron (JBC C245/C210 specifically), which can supply up to 60W of power to the iron. I have a temperature control loop that runs at 10 Hz, which I am trying to tune properly. Thus, loop_duration = 0.1 s (used…
elagil
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6
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2 answers

Hot Glue Gun NTC Heating Element?

I decided to take apart a cheap hot glue gun to see how easy it would be to replace the heating element to power it from battery instead of mains. I found the crystal heating element sandwiched between 2 metal plates, kept in compression against the…
Justin
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5
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1 answer

Switch that resets when power is lost?

So I'm looking to install an aftermarket seat heater in my car (though this would be useful for many other automotive applications). The switch it comes with does not reset on power loss, so if you leave it on, and turn off the car, when you return…
Thomas Sebestyen
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5
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2 answers

Low-side switch MOSFET cannot deliver full voltage

I have designed a portable lens heater prototype. Using: 18650 Li-ion battery Arduino ProMicro (3.3V , 8MHz) by adafruit (https://www.sparkfun.com/products/12587) Push button switch PMV16XN N-channel MOSFET…
MTIbio
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4
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5 answers

Electric stove place thermostat so far from heater

I buy electric stove and found that thermostat placement doesn’t make any sense. The thermostat used seem like one in iron, in that case, the iron heater connected directly to thermostat via ceramic ring. In this electric stove seem like it…
M lab
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3
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3 answers

where can I find high gauge copper wires for an homemade induction heater?

I am looking for something similar to this coil but for the life of me I can't find it "separated" from the circuit which I want to make by myself.
Andrea Bianchi
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2
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Indium Tin Oxide as heater element for bread toasting

Recently, the Blankety Blank game show featured as a prize a "transparent toaster". I was disappointed to see that the elements were conventional wire and could easily be seen through the transparent case. Would it be possible to build an entirely…
Dannie
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2
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Powering home thermostat using standard four-wire connection

I am starting a project to build a home thermostat for my air conditioner. I have the standard four-wire thermostat cable, with labels Rc / G / W / Y where one wire (Rc) carries a 24 VAC power source, and three other wires (green, white, and…
keenkutt
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1 answer

Induction heater short circuit

I see a short circuit in a widely used induction heater diagram. Why does this circuit work despite the short circuit? This circuit is widely successfully tested on youtube and I want to make it too, but I am afraid a little due to this short…
Vadim Ostanin
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2 answers

Heater controller circuit using MOSFET for PID control

I want to implement some PID control for a 48 W heater cartridge. I have a microcontroller which can only putout a PWM output at 3.3 V and 8.1 mA. I current am trying to use a IRLZ44N MOSFET. Is the circuit I have sketched below suitable for…
James Ashcroft
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2
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1 answer

Why does testing with multimeter fix my circuit issues?

I am using this heater along with this thermocouple and this amplifier and am just trying to be able to set and hold a consistent temperature. I have the heaters connected to a transistor circuit and I'm running a simple PID loop using a Raspberry…
Lil Mami Chula
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2
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1 answer

Calculating power of induction heating of brass

I got this project to make, to anneal brass pipe edges (to be more precise, empty brass gun-shells) of diameter about 8mm. I would like to raise the temperature up to about 450-500°C in few seconds, not minutes. I was working with 120W induction…
Jakey
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2
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5 answers

Cold start heaters for PCBs

I am working on a custom PCB design. The SoC chipset which we use supports only commercial grade temperature (minimum operating junction temperature of SoC chip is 0ºC.) We want to operate the device in cold ambient temperature (say -30ºC.) Are…
Raman
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