capacitance

Papabravo

Joined Feb 24, 2006
14,459
What is the context of your question? A capacitor is a capacitor in a circuit and we use them because that is the function we require.

Typical applications are
1- DC blocking
2- Filtering
3- Bypassing
 

thingmaker3

Joined May 16, 2005
5,084
I don't know that diffusion and transition capacitances have applications per se - but engineer types do have to account for their effects in some circuits. I suppose a varactor might be an "application" of transition capacitance. (Or am I remembering things backward?)
 

n9352527

Joined Oct 14, 2005
1,198
Hi,

That is probably so - but what is a diffusion capacitance?
It's the capacitance caused by the minority charge carriers in the neutral regions. It is prominent only when the junction is forward biased. The value is not constant and depends on bias voltage.

As far as I know there's no useful application for it, and like Thingmaker mentioned, we do have to account for it during design or modelling.
 
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