Electronics and Communication Engineering - Analog Electronics - Discussion

Given:

Gain of amplifier (A) = -1000.
Feedback factor (β) = -0.1.
Gain change due to temperature (ΔA/A) = 20% = 0.2.

We know that the gain of the feedback amplifier (Af) is:
Af = A/(1 + βA).

To find the change in gain of the feedback amplifier (ΔAf/Af), we can use the formula:
ΔAf/Af = ΔA/A / (1 + βA).

Substituting the values:
ΔAf/Af = 0.2/(1 + (-0.1) × (-1000)).
ΔAf/Af = 0.2 /(1 + 100).
ΔAf/Af = 0.2 /101.
ΔAf/Af ≈ 0.00198.

To express this as a percentage:

ΔAf/Af ≈ 0.198%.

So, the change in gain of the feedback amplifier would be approximately 0.198%.

Thank You for explaining this..

Thanks for explaining @Arnab.

Thanks for explaining @Arnab.

Thanks @Arnab.

Nice explanation. Thanks all.

Thank you for explaining the answer.

Great explanation. Thank you @Arnab.

Thank you @Arnab.

Thank you @Arnab.