Definition of Parameters



Definition of Parameters:

 

 

Substituting the equation (4) in equation (3) we get,

 

 

Differentiate the equation (2), we get

 

In this equation, 

∆VD=0, because VD is a constant

 

This leads us to the following equation (7):

 

From this equation, the change in the variable value vDS is equal to the variation in the AC value vds.

Since vds is a variable value we will get the equation (8)