BRIDGE_AMPLIFIER_1

Published:2009/6/29 22:17:00 Author:May | From:SeekIC

Two opamps are used in bridge configuration to provida twice the voilage swing across loudspeaker load for given 18-V supply,increasing power capability to about twice that of single amplifier．To eliminate excessive quiescent DC voltage across load,nonpolarized capacitor can be used in series with load or 1-megohm pot can be connected between pins 1 of opampswith position of moving arm adiusted to balance offset voltage Components shown with dashed Iines are added for stability with high-current load.-＂Audio Handbook, National Semiconductor,Santa Clara, CA．1977,p 4-21-4-28．



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