Questions tagged [static]
Anything related to static electricity, i.e. the physical phenomenon in which electric charges accumulates on objects even in absence of a steady current flow. Do NOT use for questions about electronics in a state of equilibrium (i.e. as opposed to transient or dynamic behavior).
95
questions
7
votes
2
answers
1k
views
Can air itself be theoretically considered as a (very poor) wireless ESD grounding strap?
There are many kinds of questionable ESD wriststraps available which
claim to provide ESD protection "wirelessly". When asked about how
exactly they work, they cite dubious claims about ...
- 7,218
2
votes
2
answers
916
views
If a shipboard antenna isn't "grounded" to the water on a fiberglass-hulled boat, would using the radio (TX or RX) attract more lightning?
Because of my poor understanding of the interaction between static and flowing electrical charge, I don't trust my intuition about the answer to this question.
Essentially I'm asking if there could be ...
- 33
3
votes
0
answers
35
views
A question about transient voltage supression
I am a programmer that often ends up testing electronics while testing my code. I've seen the following happen a few times, and when I asked my EE about it the other day he just kinda shrugged and ...
- 31
4
votes
2
answers
304
views
Why am I seeing a signal on a shorted differential probe?
I am chasing the cause of some weird microcontroller resetting behaviour in a prototype robot. As part of the debugging, I decided to look at the stability of the power supply for the MCU.
I soldered ...
- 27.5k
1
vote
1
answer
75
views
ESD diode current specification
I'm using this ESD diode for an Ethernet application.
The clamping voltages and the working voltage values are satisfied.
But I am not sure about the current values.
The minimum peak current is given ...
user220456
5
votes
4
answers
2k
views
Can network equipment handle 3 VAC going into an Ethernet port?
Bottom-line up-front question:
I'm wiring my house for Cat6 Ethernet. Can I harm networking equipment if the equipment receives 3 V of AC voltage on any of the Ethernet pins with respect to ground?
...
- 161
0
votes
2
answers
107
views
How to eliminate static from 3200 sq foot synthetic skating rink? [closed]
Because of high costs, I changed from a real ice rink to a synthetic rink last winter. For the summer, instead of ice skating, I'm using the synthetic "ice" for roller skating. The skates ...
-1
votes
1
answer
57
views
Do static generators maintain a constant voltage at the terminals?
Do static generators maintain the terminal voltage constant like a synchronous generator does? If not, are they at constant current? With static generator I mean photovoltaic systems connected to the ...
0
votes
1
answer
67
views
How to get a static generator starting from a synchronous one?
I want to model a static generator (a photovoltaic one) inside a simulation tool. This simulation tool has no static generator (it is quite new and not user friendly).
My idea was to model a ...
2
votes
4
answers
416
views
Sustainable packaging for electronics and PCBs [closed]
As an electronics engineer, I design and have lots of PCBs contract manufactured. Every supplier I have ever used will always use packaging materials like PE foam pouches and bubble wrap. Some use the ...
- 121
3
votes
3
answers
4k
views
How to make an anti-static vacuum cleaner?
I heard that vacuum cleaners are dangerous to use near electronic components because they build up static, and apparently, even modern components are so extremely vulnerable to static that merely ...
- 153
1
vote
3
answers
659
views
Grounding for working with electrostatic-sensitive devices
I'm planning one of my first electronics projects beyond basic repair soldering (it's a small pre-amplifier for a contact microphone). So I've got some JFETs and other pieces and would like to put ...
- 15
-2
votes
1
answer
79
views
ESD damage to old system [closed]
I was doing a capacitor check on an old xbox motherboard. I always knew that you could damage a motherboard by touch but at the time either my mindset was off or overconfident in its supposed rarity.
...
- 25
0
votes
1
answer
66
views
Static charge behavior (in ref to Grob's Basic Electronics book, 13th Ed, p33)
I have a question pertaining to the aforementioned book in a section titled "Potential between Different Charges". The paragraph goes as follows:
When one charge is different from the ...
- 1
7
votes
2
answers
488
views
What keeps frying my RF switches?
Short version: What might be breaking the first sensitive component connected to an ungrounded 14cm UHF dipole antenna mounted 30' above the ground? Could it be related to static electricity?
I have ...
- 81