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Oscillator

Printed From: One Stop GATE
Category: GATE Technical Discussions
Forum Name: GATE ECE
Forum Discription: General Technical Discussions, Queries, doubts etc. for GATE in ECE.
URL: http://forum.onestopgate.com/forum_posts.asp?TID=548
Printed Date: 13Feb2025 at 2:46pm


Topic: Oscillator
Posted By: manju
Subject: Oscillator
Date Posted: 22Feb2007 at 2:56pm
 In an oscillator gain stability is usually achieved by
(a) using -ve feedback
(b) controlling the gain
(c) incorpotating a tined ckt
(d) none of these .I think ans is a) .But in a solution answer given is b).Please,Let me know correct answer.



Replies:
Posted By: mastro
Date Posted: 05Jun2007 at 6:12am
yes..  it is right.

The main critireon behind using a feed back in oscillators is to control gain.
Because for the oscillations to occur, we should make sure that the gain and B.W product is unity or less and the total phase shift in the loop should be 180 Degrees.





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