Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [high-current]

Say how much current is required, high-current means different things to different people.

446 questions
2
votes
0 answers

Suggestions solutions for high current bed of nails style testing

I'm trying to create a tester board that will hold some power path components (DC input caps, IGBTs, current sensors) that are normally on the Unit Under Test (UUT). I'd like to connect these components to the UUT through some spring-loaded probes.…
Phillip Marks
  • 29
  • 2
1
vote
1 answer

What happens when the current fed to a device is higher than the specified value?

I have a solar panel which provides the output of up to 500mA with 6v potential difference. .5A is the maximum current output, and the usual output will be around 300-350mA. Can I use it as a power source to run a computer-fan which is specified to…
Mr Programmer
  • 55
  • 1
  • 5
1
vote
4 answers

Any Hazards Associated with a High Current Conductor

For a conductor carrying a low voltage (say 12V) and high current (say >500A), are there any hazards that we should beware of? I assume it is safe to touch the uninsulated conductor even when it is carrying a high current. I know when an inductor…
JavaMan
  • 243
  • 1
  • 3
  • 8
1
vote
3 answers

How to shut off a valve safely in the power outage

In a scenario of sudden power loss, my latching valve will be still open by default. That valve operates with 5V, and needs 0.5A current with duration of 0.1s to be shut off. How to do that in a cost effective and safe way?
shva
  • 305
  • 3
  • 13
1
vote
2 answers

Controlling the temperature of mica band heaters mounted on extruder barrel very precisely with power rating of 5kW

I want to control the temperature of mica band heaters mounted on extruder barrel very precisely with a power rating of 5kW and 220VAC. What should be the best for the switching purpose of these heaters?
Zeeshan Khan
  • 11
  • 1
0
votes
2 answers

Controlling output voltage (12v to 0-12v 5a)

I'm having a problem finding the right circuit/device for a circuit I need to make (I'm quite a noob). It doesn't matter what the input voltage is, but I need an output voltage which I can digitally change from 0 (or at least the lowest possible) to…
thijmen321
  • 137
  • 1
  • 6
-3
votes
1 answer

How much current would give a little shock

I just read on a website that 5mA is enough to give a little shock but I have touched 650mA and nothing happened. Does that mean that 650mA becomes too small when I touch it due to resistance of my body? So, how many amps would give a shock?
Mohammad Taha
  • 81
  • 2