Posted on Apr 18, 2012

This circuit uses only one JC, either 1, LM393 dual comparator or 1/z, LM339 quad comparator. RV1 and RV3 set the full scale reference voltage, and RV2 and RV4 set the switching thresholds to a value between 0 V and the full-scale reference.

Click here to download the full size of the above Circuit.

The change in input voltage needed to fully switch the output state is less than 0.05 mV (typical).

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