Waveform and Low Distortion SLF Two-phase Oscillation Circuit

Published:2011/6/5 8:06:00 Author:Michel | Keyword: Waveform, Low Distortion, SLF, Two-phase Oscillation Circuit | From:SeekIC

Circuit's Functions The phase oscillator which can get SIN and COS waves is often used as AC motor signal generator and can also be used as signal source of orthogonal coordinate transformation and adopted as graphic display of X and Y monitor.This circuit is oscillation stability circuit without AGC loop and it can obtain oscillation output when it is low frequency. Circuit's Work PrincipleOP amplifier,A1 constitutes level 2 low-pass filter,cutoff frequency's phase lags 90 degree, the amplitude is -3DB and integral circuit has nothing to do with the frequency.But it lags 270 degree,the whole circuit produces 360-degree phase shift.



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