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Experiment 4 - The Inverting Comparator

In the circuit shown you realize that the two inputs were interchanged...

Circuit diagram inverting comparator.

Circuit inverting comparator. (Enlarge)

This results in the following state table and signal profile...

Voltages LED State
Vin < VRef ON HIGH
Vin > VRef OFF LOW

States of a inverting comparator.

Signal profile of an inverting comparator.

This circuit is referred to as an "inverting comparator".

In the next step you look at an ideal comparator...
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