Electronic Devices - FET Amplifiers - Discussion
Discussion Forum : FET Amplifiers - General Questions (Q.No. 52)
52.
Referring to this figure, calculate Zi for yos = 20 
S. Assume VGSQ = −2.2V.
S. Assume VGSQ = −2.2V. 
300.2 
330.4
340.5
350.0
Discussion:
3 comments Page 1 of 1.
Tanudra said:
2 years ago
The formula is RS//(rd+Rd)/1+gm(rd).
(1)
Jas said:
8 years ago
Common gate configuration: Zi=Rs//[(rd+Rd)/(1+gm(rd))].
(1)
Kim said:
10 years ago
How to solve Zi?
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