SHUNT_CLIPPER

Published:2009/7/13 21:14:00 Author:May | From:SeekIC

When input voltage is above reference voltage, D1 is reverse-biased and input voltage passes through R1 to output.When negative peak of Ein exceeds Vref, opamp A1 turns D1 on to absorb input current from R1, thereby clamping output at level of Vref. If low output impedance is required, use 110 highspeed voltage follower as buffer amplifier.-W.G. Jung, IC Op-Amp Cookbook, Howard W.Sams, Indianapolis, IN, 1974, p 189-190.



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