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BJT small signal analysis

Betta

Oct 22, 2011
1
Joined
Oct 22, 2011
Messages
1
Hi all

Who can tell me how can i go from one model to another, i mean Re to R-pi,check out the attachment!

Thanks a lot
 

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junas

Nov 4, 2011
3
Joined
Nov 4, 2011
Messages
3
hey,
these relations should help-
1. r-pi=beta(hie)*re
2. gm=1/re
3.ro=1/hoe
4. hre=r-pi/(r-pi +ru)
 
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