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source-follower has the ability to generate current gain?

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zhangsai04

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Although the source follwer does not generate voltage gain,it does have the ability to fenerate current gain.Is it right?Why?
Thanks
 

Re: source-follower has the ability to generate current gain

we have voltage gain approximately equal to unity.
and Rinput = high while Rout=comparitively low.

now using ohm's law:-
Iinput=v/Rinput < Ioutput=v/Routput.

so this way we get current amplification.

Hope this helps.
 

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    zhangsai04

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the gain of the source follwer is usually 1.
it is mostly used as buffer, if you want...
 

mircea said:
the gain of the source follwer is usually 1.
it is mostly used as buffer, if you want...
Click to expand...

Oh, I am reading Ken Martin's book,jut feel confused when read this sentense about source follower.Thank you for your attention.

Added after 1 minutes:

sentence!
 

Re: source-follower has the ability to generate current gain

it has a current gain because the input current is very low in source follower but only the input voltage controls the output current....
 

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    zhangsai04

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