Questions tagged [heat]
Thermal energy; where it comes from, and how to keep it from damaging components
973 questions
-1 votes
1 answer
126 views
What is the explanation behind the wiring of this heater?
I’m having trouble understanding the wiring of these heaters. You can see the diagram here: I know that the wiring of heaters is similar to that of motors — they usually have 6 terminals and can be ...
- 61
1 vote
1 answer
51 views
Trace width calculator, current values shown
If I use a trace width calculator to find out the width of copper I would need for a specified current. Now for my situation I need 120-150A of current (peak), 40 - 50A continously. I am using a 4 ...
- 577
-1 votes
5 answers
161 views
Estimate heat from an Aluminium block [closed]
In my experiment, I am heating the chamber by using an aluminum block (mass: 320 g) equipped with a QITA 24 V, 40 W heater cartridge inserted into a drilled hole in the block. The heater is powered ...
- 1
1 vote
0 answers
69 views
PID temperature controller heat pad heating issues with a mosfet [closed]
I am currently doing a PID controller project to try and control a heating pad. I was following this tutorial and everything seems to work except for the heater control portion of the project. https://...
- 11
6 votes
3 answers
1k views
Does hot melt glue damage wire insulation?
I'm planning to use hot melt glue to seal gaps in circuits to prevent short circuits. For example, one application where I might use it is fuse box (which might not be a good idea since cooling ...
- 2,168
5 votes
3 answers
1k views
What gets damaged when I leave devices in a hot car?
I live in Arizona and travel a lot. As such, I regularly leave my electronics in the car while on the road. Recently, I was informed this is also likely the reason I have to purchase or warranty in my ...
4 votes
3 answers
410 views
Managing resistor heat in keep-alive circuit
I built a small, simple, quick-and-dirty keep-alive circuit for a portable charger. The charger powers some field equipment that doesn't draw enough current to keep the charger awake, so I hooked up a ...
- 51
4 votes
3 answers
665 views
High Power Resistor heat dissipation
Trying to wrap my head around some heat transfer of resistors. I have 100 W 300 Ω aluminium cased resistors, see the datasheet for HS100. From what I can tell at 100 W one of these will heat up to 100 ...
- 93
1 vote
1 answer
250 views
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)...
- 553
4 votes
2 answers
495 views
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 ...
- 553
1 vote
0 answers
106 views
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 ...
- 546
1 vote
1 answer
137 views
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 \$...
- 315
0 votes
0 answers
49 views
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
0 votes
0 answers
45 views
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 ...
- 129
-1 votes
1 answer
157 views
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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