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3 votes

IRF9540N P-MOSFET Heating UP

Take a look at these figures from the IRF9540 datasheet: They show significant \$V_{DS}\$ when passing 7A or 17A of drain current \$I_D\$, perhaps beyond 1.5V when it gets really hot. Initially from ...
Simon Fitch's user avatar
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2 votes

IRF9540N P-MOSFET Heating UP

The diodes are far too slow .Use some shottkies to eliminate this possibility. Now calculate the power wasted in the on resistance ,ignore the 23 Amp rating .You will be up for a heatsink or lots of ...
Autistic's user avatar
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2 votes

Why is a USB memory stick getting hotter when connected to USB-3 (compared to USB-2)?

I've got the exact same USB stick here and can confirm that it does get pretty warm even while "idling" at USB3; warmer than other USB 3 sticks I use. Customer reviews found on various ...
Nassbirne's user avatar
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9 votes

Why is a USB memory stick getting hotter when connected to USB-3 (compared to USB-2)?

USB3 allows for more speeds and power. A device that gets connected via USB3 link can assume and negotiate more current to work faster, like in this case, actually read and write data as fast it can ...
Justme's user avatar
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31 votes
Accepted

Why is a USB memory stick getting hotter when connected to USB-3 (compared to USB-2)?

USB3 interface contains two nearly-independent busses and has to have two controllers in one chip. One part operates as USB3, and another operates as USB2. The signals run over separate set of wires. ...
Ale..chenski's user avatar
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10 votes
Accepted

If more collisions happen with more resistance, why less heat is generated?

It is useful to draw an analogy between electric current and wind. At standard temperature and pressure, molecules in the air are traveling in random directions at very high velocities (in the range ...
Math Keeps Me Busy's user avatar
0 votes

Can Triacs work under excessive heat?

Triacs are wrong parts for this. You’ll want IGBTs or mosfets, and the AC input needs to be isolated with a relay as well, so that the inverter output doesn’t back-feed onto the AC plug. The inverter ...
Kuba hasn't forgotten Monica's user avatar
2 votes
Accepted

Weird SRAM failures when heat is applied to the system and when probed

Answering my own question in case anyone out there might come across the same problem: There was no issue with the timing specification from a SW or HW perspective nor was there an issue with the PCB ...
Oscyzilla's user avatar
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