Dv/dt (current)

Discussion in 'General Electronics Chat' started by TAKYMOUNIR, Nov 14, 2012.


    Thread Starter Active Member

    Jun 23, 2008
    I have friend told me that if the current in the circuit determined by dv/dt and for example i have capacitor is hot because of the current and if i try to add another cap. In parrallel this will not help because the current is determined by dv/dt and the same also in the freewhell diode if it warm because of the current and this current determined by dv/dt adding another diode in parallel will not help
    so can some one explain this if it is true
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    Not true. The issue is a real physical capacitor has something called "equivalent series resistance" (ESR), and it is this resistance time the current that is dissipating real power.

    You need to select a different capacitor, one rated to handle the current you are applying.
    TAKYMOUNIR likes this.