FEEDBACK_OSCILIATOR

Published:2009/6/24 2:40:00 Author:May | From:SeekIC

Circuit oscillates because the transistor shifts the phase of the signal 180° from the base to the collector. Each of the RC networks in the circuit is designed to shift the phase 60°at the frequency of oscillation for a total of 180°. The appropriate values of R and C for each network is found from f = 1/2√3πRC); that equation allows for the 60°phase shift required by the design.



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