ACTIVE_CLAMP_LIMITING_AMPLIFIER

Published:2009/7/3 3:52:00 Author:May | From:SeekIC

The modified inverting amplifier uses an active clamp to limit the output swing with precision.Allowance must be made for the VBEof the transistors. The swing is limited by the base- emitter breakdown of the transistors. A simple circuit uses two back-to-back zener diodes across the feedback resistor, but tends to give less precise limiting and cannot be easily controlled.



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