How to calculte mosfet capacitances (Cgs Cds Cdg) knowing the charges Q

Discussion in 'General Electronics Chat' started by Zakaria Fadli, Jun 17, 2015.

  1. Zakaria Fadli

    Thread Starter New Member

    Jun 12, 2015
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    i need to use the best model fo the MOSFET in my circuit i'm simulation on PSIM, the MOSFET is Si4108-TI-GE3. But i am not given the parasitic capacitance values (Cgs Cds Cdg), i am only given this : [​IMG]
    i think i should use Q=CU but i don't see how to use Q=CU for Cds since i only have Total gate charge and i don't know if that is the drain-source charge

    thank you
     
  2. DickCappels

    Moderator

    Aug 21, 2008
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  3. Zakaria Fadli

    Thread Starter New Member

    Jun 12, 2015
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    thank you
     
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