Questions tagged [heat]
Thermal energy; where it comes from, and how to keep it from damaging components
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Estimating MOSFET junction temperature from case temperature?
Is there any way to estimate (or make an informed guess) about a MOSFET's current junction temperature, based on the temperatures that I've grabbed at the MOSFET's plastic package (top of MOSFET shell)...
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NPN Transistor Saturation: "Ib must be at least 10% of Ic", how strict is that rule?
Saturation:
For anyone who doesn't know and is reading this in the future, transistors have an "active region" (its normal hFE rating) where it will ...
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What CMOS chips on the market implement reversible computing?
What CMOS chips currently on the market implement reversible computing (i.e., have Feynman, Toffoli, and other reversible gates)?
Vaire Computing is a recent startup seeking to do this, but according ...
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PCB Design: Is my copper pour for heatsinking OK?
I am using a DMP2008UFG PMOS in my power circuit for reverse polarity protection. It has a large drain pin which benefits from being connected to a large copper heatsink (note 6 in the datasheet for \$...
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Capability curve of synchronous generator
What is the equation that better describes the lower bound of capability curve which is core end heating limit as shown in this figure from Wikipedia 'Capability curve' :
Wiklipedia
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Can TENGs be affected by heat?
I've noticed when creating a 2x2 inch basic TENG with simple materials, when pressing the two layers together with my hand it generates more voltage than with something at room temperature when ...
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Calculation shows high temperature gain after 1 min of electrical heating 0.5 inch nichrome wire but practically temperature stays relatively same
This question is a followup question from this other question of mine. You should see the selected answer for the referenced post. Values used for calculations in current post is based on the selected ...
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Why does my calculation show extremely high heat generation in 0.5 inch nichrome wire from 6 V DC but nothing in the actual circuit?
I am trying to calculate (and build the circuit) the amount of heat that could be dissipated in a 0.5 inch 28 s.w.g (0.000376 m diameter) nichrome element if 6-volt is applied for 1 minute.
Here I ...
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Heating foil working principle, how to fix it? [closed]
This is a heating foil from the side mirror of a car and is supposed to melt ice on the mirror on a cold day. It seems to be broken (significantly less power compared to the other mirror) but the ...
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Why do higher clock cycles generate more heat?
A CPU at a higher speed will generate more heat, essentially placing a limit on the maximum frequency. Higher speeds require more cooling, undervolting, etc.
While I always accepted this fact, I don't ...
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Slow rise time for a temperature sensor
I have a consumer-grade Bluetooth LE tempeture sensor like this:
I noticed that, when moving this device from outside (+3°C) to inside (+20°C), it takes a huge amount of time to get to the right ...
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LM7805 output current [closed]
I have a 7805 voltage regulator, which I supply with 12 V on the input and I get 5 V on the output.
What will be the output current? I simulated this circuit, and I got 133 uA on the output which is ...
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How to size heatsink for this thermoelectric heating application
As a part of experiment I also want the one side of this TEC(Peltier module) to be held at 50°C(where the room temperature is 25°C) and need to size a heatsink this time for the cold side.
The hot ...
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Using IGBTs for controlling heating loads
I know traditionally antiparallel connected SCRs (Thyristors) are used in phase-angle control mode to control the heat delivered to an industrial furnace or to control heating loads. Can the same be ...
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Which diode releases the most heat when used as a low voltage heating source?
I was reviewing Grace Gius &al.: Hot diodes!: Dirt cheap cooking and electricity for the global poor?. By using a series of diodes the system gets to be more efficient than using resistance wire ...
