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MOTM

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Message

Comparators

2002-02-14 by J. Larry Hendry

My little brain has been thinking a lot about comparators lately.  I was
just thinking of a concept where some comparators coupled with the wonderful
MOTM-820 VC lag might make nice "multiple gate delay."

Here is the idea:  Feed the gate signal into the VC lag.  Set the down lag
time for zero. Take the output and run to 3 comparators.  Each comparator is
set to turn on its output at a progressively higher level. The output of
each comparator is used as the delayed gate.  So, now I have 4 gate signals
turning on a 4 different times - the original gate, and the 3 comparator
outputs. The up lag time sets the overall delay range.  The comparator set
points set the relationship between gate times. Since the 820 is set for lag
only in the up position, all gates would end at the same time.

The more I think about comparators, the more useful I see these generic and
apparently useful utility circuits.  I guess I am surprised that more people
on the list have not talked about them.

Of course, I have to admit to absolutely no modular experience before MOTM.
So, I run into ideas that are "new" to me that may be completely old hat to
you guys with more experience.

Stooge Larry

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