STEREO_BALANCE_METER

Published:2009/6/25 21:44:00 Author:Jessie | From:SeekIC

Outputs from each channel are fed to the two inputs of IC1 conrfected as a differential amplifier. IC2 and 3 are driven by the output of IC1. Output of IC1 is connected to the nonin-verting inputs of IC2 and 3. If the output of IC1 approaches the supply rail, the outputs of ICs 2 and 3 will also go high, illuminating LED3. This would happen if the right channel were dominating. If the left channel was dominant, the outputs of ICs 2 and 3 would be low, il-luminating LED1. If the two channels are equal in amplitude, the outputs of ICs 2 and 3 would be high and low respectively, lighting up LED2.



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