Op-amp device logarithmic tables circuit

Published:2011/5/10 22:30:00 Author:Christina | Keyword: Op-amp, logarithmic tables | From:SeekIC

The op-amp device logarithmic tables circuit is as shown: Figure (a) circuit: you can choose the NPN or PNP transistor according to the input signal's polarity, the voltage can be adjusted by the adjusting potentiometer RP. Figure (b) circuit can be used as the anti-tachometer, also you can choose the NPN or PNP transistor according to the input signal's polarity.



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