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Capacitor Discharging Question

Discussion in 'General Electronics Discussion' started by CrazedBinary, Aug 20, 2017.

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  1. CrazedBinary

    CrazedBinary

    2
    0
    Aug 20, 2017
  2. Electrobrains

    Electrobrains

    259
    6
    Jan 2, 2012
    Sure you can!
    You just need paatiiieeenceee...
    The probe has 600MΩ internal resistance.
     
  3. CrazedBinary

    CrazedBinary

    2
    0
    Aug 20, 2017
    How long do you think it would take for say a 500 volt?
     
  4. Electrobrains

    Electrobrains

    259
    6
    Jan 2, 2012
    Depends on the size of the capacitor.

    Here is a good site where you can calculate the discharge (and charge) characteristics of capacitors:
    http://mustcalculate.com/electronics/capacitorchargeanddischarge.php

    Example:
    In your case, with your probe (600MΩ), a 470μF capacitor charged to 500V, to reach 30V, it would theoretically take 220 hours (9 days!) and look like this:
    http://mustcalculate.com/electronic...p?vfrom=500&vto=30&vs=0&c=0.00047&r=600000000

    Of course it would take less time than that because the leakage current through the capacitor would discharge it in a fraction of that time.
     
  5. tedstruk

    tedstruk

    475
    7
    Jan 7, 2012
    I think I am going to cry... Electrobrain has posted a link to the most useful of all internet calculators... that is a great link... that is the best link on the internet...
    I think I like link....
    thanks EB.... I needed that!
     
  6. Electrobrains

    Electrobrains

    259
    6
    Jan 2, 2012
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