Write advantages and disadvantages of positive and negative feedback.
by

1 Answer

0 like 0 dislike

Advantages of Positive Feedback: i) Voltage gain increases. ii) No phase shift is provided. iii) Feedback signal and input signal are in phase. iv) Input and Output voltage increases. 

Disadvantages of Positive Feedback: i) Stability becomes poor as feedback increases. ii) Noise increases with feedback. iii) Bandwidth decreases. iv) Input impedance decreases. 

Advantages of Negative Feedback: i) Stability becomes better as feedback increases. ii) Noise decreases with feedback. iii) Bandwidth increases. iv) Input impedance increases. 

Disadvantages of Negative Feedback: i) Voltage gain decreases. Phase shift of 180 is provided. ii) Feedback signal and input signal are out of phase. iii) Input and Output voltage decreases.

by

Related questions

9,129 questions

7,895 answers

145 comments

3,202 users