cse • paper_2 • solid_state_electronics
[UPSC CSE 2020] Semiconductors/Solar cell (Q176, 15M)
Consider an amplifier with an open-loop (no feedback) gain of A and a feedback factor \beta. Derive the expression for the gain with feedback, A_f. Derive the condition for the amplifier with feedback to act as an oscillator. Comment on the change in A_f with a change in A.
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