friends, in closed loop system bandwidth is encresed comparision to open loop.

friends,
in closed loop system bandwidth is encresed comparision to
open loop. what is mean by that?
generally bandwidth means something realeted to frequency.

Question Posted / ponia2008

1 Answers
3856 Views
BARC, I also Faced
E-Mail Answers

friends, in closed loop system bandwidth is encresed comparision to open loop. what is mean by tha..

Answer / ro

BANDWIDTH-- >> in general is the total range of frequencies that a system can handle..
BW= Fmax-Fmin

now.. a system is called open loop when there is no feedback.. when feedback(-ve) is introduced(negative feed used as +ve feed will make the system unstable usually), the gain will reduce .. along with that, it lets the system handle more range of frequencies.. thus bandwith increases.. the principle of GAIN*BANDWIDTH is always kept constant.. thus when gain is reduced, BW increases..

thus closed loop system BW increases compared to open loop..

--RO--

Is This Answer Correct ?

8 Yes

0 No

Post New Answer

More Electronics Communications Interview Questions

What happens to the series current , load current and zener current when the dc input voltage of a zener regulator increases?

0 Answers

Explain why vestigial side band is used in tv signal transmission?

0 Answers

SIR,i am applying for the jr.engineer(signal)post.kindly if you send some previos sample question -answer i will be higly obliged

0 Answers

What is the correct way of weather proofing?