Questions tagged [stress-testing]
The stress-testing tag has no usage guidance.
12
questions
9
votes
2answers
144 views
Looking for a explanation/cause of lithium polymer battery failure
I'm hoping that someone on the EE StackExchange could give me some insight into what is going on with some lithium polymer batteries that I have under test.
The question I am trying to answer is: ...
0
votes
1answer
53 views
What are the general guidelines to conduct a stress test for an assembled PCB to test reliability after fabrication?
I got a PCB fabricated from a board-house. The PCB contains:
DC-DC power circuit
protection diodes
Atmel ATtiny microcontroller
LED's
USB hub and interface to a RPi
I want to conduct a stress test ...
2
votes
1answer
197 views
How to test a capacitor?
I've got a big 560 uF, 400 V capacitor and I've tested it with a meter and the capacitance is within spec, same the ESR and it has a vloss of 0.8%. So all seems fine but then I came across this video ...
15
votes
3answers
332 views
Puff of smoke in air. 3 different PCBs. PCB has ghosts?
Yes, that is a haiku. (EDIT: fixed it... it is now actually a Haiku)
No I'm not smiling.
I'm doing some standard testing; seeing what happens when one of the two power rails gets shorted to GND on ...
2
votes
1answer
183 views
MOSFET Vgs Electrical OverStress [closed]
I have a design is that over-stressing (EOS) a PFET's (PMDT670UPE,115) rated Vgs by 50% (Vgs -12V, limit is -8V), I want to consider PWM'ing this part with 50% duty cycle in hopes of increasing the ...
0
votes
4answers
170 views
Stress testing a PCB’s current handling capability?
I’ve produced a simple unregulated power supply PCB, consisting of:
AC input terminals
Fuse
4 rectifier diodes
Filter/smoothing capacitors
DC output terminals
Only when the PCBs arrived did I get ...
2
votes
0answers
101 views
IC package reliability with physical stress
One of the ICs for my design comes in LQFP, TSSOP, QFN and even WLCSP packages. I don't care about the footprint, and the only thing that I want to maximize with the package choice is reliability ...
1
vote
2answers
110 views
How to maximize microcontroller temperature?
I need to test how hot a specific microcontroller can get in different situations. The goal is to have the microcontroller heat up as much as possible just by using it.
I was thinking I'd need to
...
3
votes
1answer
1k views
Switching RJ45 with relays
So I am setting up an automated test environment for an electronic product and one of my needs is to simulate a user pulling the cable from the product. Since only 4 wires of the RJ45(T-568B) cable ...
2
votes
3answers
3k views
How to test op amp stability?
I've got a circuit I'm developing using an op amp to drive a power MOSFET for an electronic load:
I'd like to test it for stability, but I don't have enough experience to know what perturbations are ...
3
votes
1answer
653 views
How to automatically test the audio quality of a telephone line that randomly goes bad?
I am a computer scientist and I'm working as sysadmin of a small firm where I've been managing also the telephone system that my predecessor put in place.
Albeit I don't really have the skill set ...
1
vote
2answers
346 views
Generate 10A for stress testing
How could I, a cheapskate hobbyist, generate large currents around 8–10 Amps to run through a short circuit? That is, the objective is to stress test a very low-resistance circuit going ...
