ERROR_ADD_ON_REDUCES_DISTORTION

Published:2009/6/29 2:54:00 Author:May | From:SeekIC

Based on fact that error at output of upper opamp also appears at input of this opamp, Error signal is taken from this input for lower opamp, where it is amplified by opamp and Darlington for addition to output of upper Darlington. Article gives design equations and intimates that open-loop gain improves at 12 dB per octave as compared to conventional 6 dB, Applications include reduction of loudspeaker distortion which cannot be handled by negative feedback.-A.Sandman, Reducing Distortion by 'ErrorAdd-On.' Wireless World, Jan. 1973, p 32.



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