| Electronics > Projects, Designs, and Technical Stuff |
| Passive airflow ? |
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| Jan Audio:
Ok i am leaving it like this and printing. Just have to wait two days now. |
| SiliconWizard:
--- Quote from: Jan Audio on December 26, 2019, 01:57:43 pm ---Here is my thing up to so far in openSCAD : (Attachment Link) (Attachment Link) --- End quote --- This is a fun "tower" shape. I don't know how crowded it will be inside, but looks like there will be plenty of room so heat should not be a concern. Thing to do would be to analyze which parts of your electronics will dissipate the most power and focus on those. I'd bet it's the voltage regulator of your PS if this is a linear one. Heatsink it properly. Should be enough. |
| Jan Audio:
I have no room for heatsink, maybe i can attatch it upside-down. Its only 3 volt, you really think it will be hot ? |
| iMo:
The voltage regulator will dissipate P=0.3W=(15V-12V)*0.1A The temperature of its package is approximately Tpack = Tamb + Rth*P, where the thermal resistance Rth depends on the voltage regulator's package type and the size/type of the heatsink. For example with Rth = 20C/W (no idea what is yours) Tpack = 23C + 20C/W*0.3W = 29C |
| Jan Audio:
29 degrees = No heatsink needed, betters. I had a 12v to 5v @ 100mAh it gets so hot you cant touch it to long pressed, that is another case. |
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