Questions tagged [static-electricity]

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Darlington triplet - static electricity detector?

simulate this circuit – Schematic created using CircuitLab I built this circuit. Different versions of this exist on the internet, some using an MPF-102 JFET instead of the 3 NPNs. The various ...
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0 votes
1 answer
118 views

Artificial grounds to remove static electricity on a metal frame?

I am a vex robotics student. Our team has an issue where ports on our robot core stop working due to static electricity buildup on the metal frame around the motors. Is it possible to make an ...
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1 vote
1 answer
119 views

Can a battery electric vehicle be driven through a dust storm? [closed]

I would like to know if a battery electric vehicle such as a Tesla Model 3 automobile can be driven through a dust storm. Back during the Dust Bowl days of the 1930s, driving through a dust storm ...
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galvanic isolation in high voltage applications

consider a high voltage transformer outputing 100 to 200 kilovolt to a load, both in some oil container. the voltage needs to be regulated through a high ratio divider feedback path. the whole system ...
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1 answer
103 views

Can a static shock to a motherboard damage a hard drive that is connected? [closed]

Hypothetically, could the shock spread through the board and follow the wires and damage a hard drive?
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0 answers
29 views

Implications and cause for static discharge

For months, I've had a potential buildup culminating in static discharge when touching the chassis of my macbook pro at ONE location. No source could be identified (no ground leakage – I checked with ...
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3 answers
134 views

Could static electricity from trading card binder pages damage SMD components?

I bought a trading card binder to hold SMD components. I chose it because its card-sized sleeves can hold more than just tape strips and also it has a zipper. However my concern is that the clear ...
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4 answers
354 views

Can you get an electric shock from a UPS output? If yes then can it be fatal?

I have an UPS of 800 watts which means its output is about 800 watt. I am installing a current leakage breaker to my main supply so that if I accidentally touch any things which produce current my ...
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0 answers
94 views

Can USB head cause a spark?

I made a USB port in a gas detector prototype. I plan to keep a USB cable attached to that USB port forever. I silicone conformal coated the USB port pins on the PCB. Can the USB head of the cable ...
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2 votes
1 answer
109 views

Questions about static electricity

I'm watching LTT's new video with Electroboom where they shock RAM with an ESD gun. In some occasions, they do it without grounding the RAM stick. Doesn't the current have to go back to the source? I ...
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2 votes
3 answers
231 views

How the (earth) ground works?

I have developed bad intuition and a lot of misunderstanding about how grounding works. For example, in this thread: Will a battery connected to the Earth eventually deplete?, the accepted answer is ...
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4 votes
2 answers
668 views

Should stereo speaker cables be elevated to avoid static electricity

I am contemplating a new design for speaker cable stand-offs. I am unable to find support, only opinions, about static electricity produced by carpet affecting AC current between amplifiers and ...
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1 vote
1 answer
35 views

Electrostatic arc safety

I'm experimenting with early electrostatic devices, and I'm measuring spark gap length to determine voltages generated. How dangerous is it to observe these arcs with the naked eye? Should I wear ...
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1 vote
3 answers
173 views

Voltage / current from Van De Graff generator vs. voltage / current from AC wall sockets in homes

The Van De Graff generator can generate voltages in the kV and MV range. I have read that if I touch the Van De Graff generator producing, say 50kV, with one hand (myself being insulated from ground ...
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3 votes
2 answers
132 views

How can I discharge static electricity from my body?

I am planning to install a PCI Express Wifi-adapter in my PC. In order to do this, I would need to open my PC. I'm worried that if there is static electricity in my hands it could fry the motherboard. ...
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0 votes
1 answer
371 views

Would the static charge from a silicone work mat be dissipated by an ESD mat if placed on top of it?

I know the proper rubber mats that are both ESD safe and heat resistant are quite expensive, and definitely out of the price range of a beginner hobbyist like me. I have also read that the silicone ...
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1 answer
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Is a metallic conductor within an electrostatic field necessarily subject to discharge?

Basically what I'm trying to determine is if the new RAM chips I received in the mail were potentially damaged from static electricity. Late last night, tired and foggy, I built up a considerable ...
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34 votes
2 answers
1k views

What's the difference among these static protection bags?

I have some old modems & other cards stored in plastic static bags and noticed that a few of them were distinct... these are all from the 1990s or maybe early 2Ks. Here's a sampling: From left ...
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How to get rid of static electricity on a plastic slide

I've got a indoor spiral slide which appears have a large amount of static building. It frequently gives little shocks to people going down the slide. I've also got WS1825 addressable light strips on ...
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1 vote
2 answers
296 views

How prevent discharging static electricity when touching metal case of sensitive circuit?

I have made a metal box including raspberry pi, touch screen and lcd screen. my problem is when i touch the box static electricity cause arc and shock to device and cause software failure also. i ...
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-1 votes
1 answer
189 views

Measuring mains voltage with DMM and only one probe gives 100+ volts!

While trying to find out what is going on here , when measuring the mains voltage with a multimeter by connecting the red probe to the line and leaving the black (com) one laying in the floor after ...
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1 vote
5 answers
700 views

Is there a reason that dryers aren't grounded [closed]

One minute ago I cried out in pain, after being electrocuted again by my clothes dryer; probably the thousandth time in my life that this has happened. I was taking out clothes after they're dry, ...
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1 answer
33 views

Static electricity high voltage and charge difference

I have often heard heard voltage being described as a difference in charge between two points. If this is true, how is static electricity such high voltage even though it is a relatively small ...
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1 vote
2 answers
1k views

Are ESD safe tools necessary with proper setup?

My current setup is an ESD mat and ESD wristband both connected via alligator clips to unpainted screws that are screwed into a secondary PC power supply (not mounted in a PC case.) This power supply ...
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2 answers
854 views

Grounding Yourself When Working On Electronics

I was wanting to discuss if using a wrist strap connected to a in unpainted screw on a pc power supply (this screw is a mounting screw it is not touching anything inside the power supply) that is not ...
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1 vote
1 answer
92 views

Faraday cage and static electric field

Can anyone explain - what is the difference between static and varying electro-magnetic fields? I know the definition for what is static electric field. It does not change with time (0Hz frequency.) ...
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5 votes
4 answers
225 views

Avoid voltage peak / static discharge freezing an Arduino

I am building a speed-testing stand for electric wheelchairs with an Arduino Nano and a rotary encoder. The wheelchair is put on cable caddies, which turn the rotary encoders via a belt. The setup ...
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1 answer
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Styrofoam cooler/chest ok for electronics project?

I'm building a DIY power supply using 6 server power supplies. I've been looking for a case/enclosure to hold them and the necessary wiring and came across a styrofoam cooler that's the perfect size ...
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0 votes
1 answer
68 views

What is the safest way to remove dust from electonic devices?

As dust inevitably settles on electronic devices such as televisions, laptops, computers and the like, what is the safest way to remove these both internally and externally? The definition of safe ...
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3 votes
2 answers
696 views

Type of wire for high voltage applications

What kind of wire is most suitable for HV low-current applications, where the allowed maximum is 25 kV and 5 W? By type of wire I mean core and type of insulation. As far as I can guess, even if the ...
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  • 131
2 votes
1 answer
1k views

Charge capacitor with static electricity

Can i charge a capacitor fully with only static electricity? I already took a look at: Electrostatically charging a capacitor and How to charge a capacitor with static electricity? but i'm not sure ...
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-1 votes
1 answer
143 views

How is this copper showpiece making static electricity

I'm trying to make a showpiece which generate static electricity just like in this YouTube video LINK Does it have Tesla Coil (Slayer Exciter) inside it or Negative Ion Generator?
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1 vote
1 answer
214 views

Insulating from static electricity

I am happy to announce that my pocket extra-strong static electricity generator project is now complete and works well. However there is one problem, I am often getting zapped severely (to the extent ...
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1 vote
1 answer
134 views

Can Static Electricity change the voltage reference of a PCB?

Problem: After running a test that creates static electricity, the values acquired by a hall-effect sensor are not correct anymore. Context: The device I am working on draws and rolls up fishing ...
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-4 votes
1 answer
80 views

why dont we just use ion wind flowing through evacuated pipes?

Why dont we just use ion wind flowing through evacuated pipes? I ask this because if we reduced the atmospheric pressure in the pipes somewhat, and made them out of a cheap yet durable insulating ...
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-4 votes
6 answers
2k views

What transformer I should use for negative ion ionizers

If I want to create a device that produces high static electricity fields, such as negative ion generators, what kind of transformer specs I should look for? I want super huge static electricity, and ...
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0 votes
0 answers
43 views

Charge distribution/movement in an insulator

The way I understand it, net charge in a conductor spreads out evenly over the surface, while for a charged insulating object, the charge will tend to stay clustered around the spot where it was ...
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0 votes
1 answer
58 views

Radio Noise from Storm

I drove through a Wyoming thunderstorm today. Just for fun, I set my AM car radio to the top end of the AM broadcast band where there was no station audible. Sure enough, I heard the lightning ...
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2 votes
1 answer
3k views

How to charge a capacitor with static electricity?

I want to charge a capacitor using static electricity generated by me (walking on carpet etc.) and try power a small LED or if that doesn’t work a reading on the voltmeter would be fine (it’s for a ...
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0 votes
1 answer
82 views

Could sliding down a slide damage my camera? [closed]

Specifically one of those plastic spiral slides - I was at the playground with my children yesterday and when we went down the slide there was enough static generated to stick our hair on end. Of ...
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0 votes
0 answers
708 views

Easily available alternative to anti static bags

I want to pack some electronic components, but I don't have an anti static bag. Are there any easily available materials that can be used instead. Any frugal tricks ?? Thanks in advance.
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3 votes
1 answer
2k views

Discharging static electricity touching chassis macbook pro?

I was following some instructions from Apple here about changing RAM memories in a macbook pro laptop when I had a question. In these instructions, step 3 tells specifically "Touch a metal surface ...
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5 votes
2 answers
2k views

Antistatic bag inside plastic bag?

I had to store a computer motherboard were the cardboard box was lost. The motherboard is in the original antistatic bag still closed with tape. I decided to put it inside a regular plastic bag ...
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4 votes
1 answer
5k views

What makes my screwdrivers ESD safe?

I needed a new screwdriver set and found one called T4741SESD. In the product description it says the following: ...
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1 vote
2 answers
1k views

My oscillator of 40Khz is not giving 40Khz signal at the output

I am putting a 40Khz crystal oscillator with 33Pf load capacitors. The problem I am facing is that as soon as I switch on the circuit, it is not giving me the pulse but as soon as i touch a metal or ...
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-4 votes
3 answers
2k views

ESD damage after touching metal PC case?

When i'm tribocharged and then discharge to a graphics card, i can kill that device. Let's say i'm at -2000V, compared to my motherboard, and i touch the metal traces around the board's screw holes. ...
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1 vote
5 answers
1k views

Questions on basic ESD safely

Let me first apologize as I know this topic appears to have been discussed extensively yet something isn't clicking for me after researching over many days in stack, google, and youtube! I want to ...
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6 votes
2 answers
8k views

Do antistatic gloves help avoiding ESD?

On page 11 of this ESD Book: ESD sensitive device can experience a damaging discharge if touched by a person, even if that person is properly grounded. Increasing the electrical path'...
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0 votes
1 answer
1k views

Avoiding ESD on a new Graphics Card?

Would it make sense to connect the GND pins of an 8-pin PCIe power connector to a common point ground (which is at earth potential) and then plug that dummy connector into my new GFX card, before ...
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-2 votes
2 answers
681 views

Static electricity(ESD)damage for a PCB,immediate or gradual? [closed]

Accidentaly touched PCB of motherboard,so if it got damaged by esd would it boot?
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