Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [overheat]

96 questions
17
votes
1 answer

Entire Perimeter of FPGA Getting Hot - Why?

I have a commercially-produced board with an Altera EPF10K30-series FPGA. There is an abnormally high current draw on the board. Where +5V should be present, there is only +2.6V. When comparing thermal images of a known good, working board to the…
jfriend
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15
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3 answers

LM2586 - Inductor Heats Then Burns

I'm designing a step-up constant current source to drive LED strips (nominal load voltage is about 54 VDC). Requirements: Vin: 18..32 VDC Iout = 0.2 A Vout = 54 VDC (nominal) - 57 VDC (maximum) Since the circuit should have an on-off input, I…
Rohat Kılıç
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8
votes
5 answers

MOSFET overheating and voltage drop

I've searched on the network for days but couldn't find a solution to my problem I hope you can help me. I want to create a DC motor speed regulator using IRFZ46N as a power MOSFET and a 10k potentiometer. I created this circuit and tested it on a…
minghierid
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8
votes
4 answers

Is it Safe to Plug an Extension Cord Into a Power Strip?

Just a bit of context, I am a technology enthusiast. I love everything from software to hardware, Windows to Linux, Computer to Phone, and everything in between. So, I wouldn't be surprised is my electrical usage exceeds 50% of the entire household…
user213595
7
votes
6 answers

Is this food box safe for electronics?

I want to organize some components and wiring for power distribution for a small solar panel. Voltages up to about 24 VDC, and currents up to about 3 amps. Components inside will include switches, terminals, voltage displays, buck converters, and…
Boann
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7
votes
2 answers

24 V transistor switch acting strangely

I am working on a project to switch a spring-applied brake (datasheet, page 84, MCNB 2GR) using a Teensy 3.5. I only have limited electronics knowledge and am struggling with weird behaviour from the transistor. I have previously asked for some help…
Custos
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7
votes
3 answers

MT3608 gets very hot only handle 1A

In the datasheet they mention the MT3608 can handle up to 2A however in some stress tests with a load tester it gets already very hot at 1A. It is so hot, it is impossible to touch the board, all components around it get very hot because it spread…
Codebeat
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6
votes
2 answers

Entire FPGA getting hot evenly, not just a single hot spot

I have a board with an Altera EPF10K30RC240-4N that is not functioning at all. There is a high current draw on the board. The +5V rail is only 2.6V and there is 4.2 ohms between +5V and GND. The board is a plug-in module for a larger assembly. It…
jfriend
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6
votes
5 answers

Why are DIMMs not equipped with a heat sink like a CPU?

I know that a DIMM is composed of a set of chips that contain control logic managing the decode and prefetching memory operations. According to a product specification, I found that newer RAM works at a high clock rate (> 1Ghz) that is comparable to…
user6039980
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5
votes
1 answer

Voltage regulator LMR33630 doesn't work, asking for circuit review

I've put LMR33630ADDAR voltage regulator into a PCB with this circuit: It's slightly different from the example from datasheet: PG isn't connected, CFF capacitor absent and feedback resistors are 10k vs. 2.49k. I see no issues with these…
brigadir
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4
votes
2 answers

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 doing wrong?
PO12
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4
votes
3 answers

How to test desert (Dubai-like) conditions when you are in a temperate climate

I would like to stress test an electronics device in desert (think it like Dubai) conditions, such as 40-45 degrees Celsius = 100+ degrees Fahrenheit with direct sunlight and zero humidity. I live in a temperate climate with temperature around 25-30…
gregoiregentil
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4
votes
3 answers

DIY Induction Heater failure - MOSFET overheat

I saw this video about DIY Induction Heater and I decided to make it by myself in order to learn something from this project. After finish wiring everything, I connect the power supply and heard/saw a spark. I touched the components and the two…
yanivps
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3
votes
1 answer

MOSFETs overheating at higher voltages

I don't have problems working with low voltages like 12V, but when I started working with higher voltages using MOSFETs, I ran into problems with MOSFETs overheating. I tried anything that came to mind but with no success. I am using old components,…
user320546
3
votes
4 answers

PWM motor control, MOSFET getting very hot

I have problem driving a high current DC motor (RS-775 24V-12V 80W), the MOSFET getting very hot when I use PWM signal. I'm using Raspberry Pi 3 b+ to generate PWM signal at (pin 8) which connected to MOSFET gate through 1 kΩ resistor as the…
0ussama
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