Questions tagged [heatsink]
A heatsink dissipates heat into the surrounding air and thus provides cooling.
445
questions
7
votes
3
answers
518
views
SMT heatsink makes a hole in the groundplane
I am putting an Infineon TLE8386 boost controller on a board. It uses an external FET, I have selected one in a TO263 (D2PAK) and I am trying to work out the compromise between heat-sinking and ground ...
- 342
0
votes
2
answers
165
views
Does the direction of the screw for heatsink mounting matter?
I am currently design a high power system transistors in TO220 package.
I am planning to mount those transistors on a metal box that will act as a dissipator/heatsink for the transistors. The walls of ...
- 103
1
vote
0
answers
236
views
Is it bad practice to connect a heatsink to my PCB's ground plane?
So, basically, I have this LED project which is going to dissipate lots of heat (I am assuming close to 50W) inside a case. The LEDs themselves are on a separate aluminum board which will be attached ...
- 141
1
vote
1
answer
460
views
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 ...
- 13
-3
votes
1
answer
112
views
What is the purpose of these strange patterns in i/o port panel of GPU card? [closed]
Ref: https://www.techspot.com/article/1988-anatomy-graphics-card/
The left side pattern seems to get it attached to Graphics card slot- but not sure why those flanges are required.
Absolutely no ...
- 3,032
0
votes
1
answer
110
views
Where do you find how much heat a heatsink is rated for? [closed]
I have an N channel MOSFET and a P channel MOSFET. I found that for the P-channel MOSFET I need a heatsink that is lower than 5°C/W. The N channel MOSFET needs a heatsink that is lower than 13°C/W.
I ...
- 1,072
0
votes
0
answers
124
views
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 ...
0
votes
3
answers
468
views
Long term issues with AC/DC converter in always ON application
We have designed an "always ON" electronic home automation device which goes behind the switchboard (inside the wall.) This is the first commercial product that I am designing, so bear with ...
- 109
4
votes
1
answer
460
views
What is meant by the statement "Local bypass capacitors are needed to control EMC coupling with heat sink"?
During a talk, not sure what the speaker meant by the statement " We need to add local bypass caps to control EMC coupling with heat sink"
He was referring to the MOSFETs in synchronous ...
- 3,032
0
votes
2
answers
159
views
Where can I find large thru-hole heatsinks like this? [closed]
I'm doing a project with an OPA541 amplifier, and I need to find a heatsink similar to the one in the pictures:
But I only found small ones with a screw hole and legs for soldering, none of the large ...
3
votes
2
answers
703
views
Can a CPU heatsink be used to cool a TO-3P or a TO-220?
I want to know if my thermal design is appropriate for dissipating 72W of heat while keeping the junction temperature below 150 °C (I am trying to cool an SFH154 that comes in a TO-3P package). My ...
- 633
1
vote
2
answers
119
views
Step-down conversion materials
I have an ac adapter on which I would like to reduce the output, from 24 vdc to let's say 6 vdc. What type of diodes should I use and how many? What about heat dissipation?
- 11
4
votes
2
answers
766
views
Copper braid as heatsink
Somebody recently asked me about this headlight: https://www.hsd-il.com/products/h7-72w-8000lm-led-car-headlight-bulbs-cree-led-chips-6500k-drl-copper-belt-headlights-12v-24v
Interesting. I'm not ...
- 61
0
votes
1
answer
114
views
What is the black, finned, metal part in this picture of a board?
Can someone explain what this black part is?
This a WLAN module.
- 247
2
votes
1
answer
98
views
LED lights become darker? [closed]
I build myself a light with many small LEDs. They are quite powerful. I superglued ever LED board (the LEDs where in parts of 3 on a small circuit board) to an aluminium piece to dissipate the heat.
...
