Capacitance to current

Discussion in 'General Electronics Chat' started by keyboardcowboy, Oct 5, 2013.

  1. keyboardcowboy

    Thread Starter New Member

    Dec 31, 2012
    25
    0
    A capacitor stores charge and current is the measure of flow of charge, when a capacitor discharges (in a circuit or by connecting a LED across its terminals) the stored charge flows so is it possible to convert charge stored in a capacitor to amps ? Or in other words how much current can a charged capacitor supply?
     
  2. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    It will supply this current:

    i=Vcap/Rcircuit

    The current will change all the time because the voltage across the capacitor will be decreasing.
     
  3. wayneh

    Expert

    Sep 9, 2010
    12,145
    3,056
    A farad of capacitor capacity gives 1 volt per coulomb of charge, which is 1 amp-second. So a 1F cap charged to, say, 6volts, can deliver 1 amp for 1 second as the voltage falls from 6V to 5V.
     
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