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Electronic Devices - Oscillator Circuits - Discussion

Discussion Forum : Oscillator Circuits - General Questions (Q.No. 35)
Oscillator Circuits
35.
Referring to this figure, calculate the voltage gain with feedback Avf.

–4.85
–4.20
–4.17
–4.00
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
2 comments Page 1 of 1.
Vishnu badal said:   1 decade ago
It is known current series feedback so we use Avf = Vo/Vs = IoRc/Vs = AfRc = -hfeRc/(hie+hfeRe).
Srinivasan said:   1 decade ago
Avf=-hfe*Rc/(hie+((1+hfe)*510))
(1)
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