ELIMINATING_RINGING

Published:2009/7/10 4:01:00 Author:May | From:SeekIC

High-Q bandpass integrator reduces ringing significantly by amplifying AC input signal in two broadband differential amplifier stages, A1 and A2 before differentiation and selection by D1 and D2. Input gate pulse P1 and differentiated pulses drive AND logic that generates output pulse Ps coincident with zero crgssings of AC input. Leading edge of Ps will always occur at first zero crossing after P1 initiates gating action. If output drives balanced diode bridge, gating pedestal and AC signal transient are eliminated; high-Q bandpass integrator then has fast settling time, permitting faster repetition rates.-R. J. Tumer, Reduce Integrator Transients with Synchronized Gate Signals, EDN/EEE Magazine, Jan. 15, 1972, p 46-47.



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