Double T Sinusoidal Oscillator with Stable Output Circuit Composed of LM170

Published:2011/5/25 4:05:00 Author:Joyce | Keyword: Double T, Sinusoidal Oscillator, Stable Output, LM170 | From:SeekIC

As shown in the figureis the circuit for double T sinusoidal oscillator with stable output.This circuit uses automatic gain control amplifier LM170 to stabilise its amplitude . In this way, the wave form would have no distortion. Even when the double T circuit and amplifier have changes, the output amplitude can remain constant.Using the component values in the graph can compensate the change of 40dB. 100k potentiometer is used to change the threshold level controlled by automatic gain to change the output level. The oscillation frequency of circuit is:F0 = 1/2 PI RC If using the component values in the figure, the oscillation frequency is about 1kHz.



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