Dv/dt (current)

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

  1. TAKYMOUNIR

    Thread Starter Active Member

    Jun 23, 2008
    351
    1
    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
    7,386
    1,605
    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.
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