[sdiy] Best way to limit control voltage

[J. Larry Hendry]

I'd like to tap into the vast expertise again and ask what methods people
are using to be efficient with limiting a control voltage.  I am designing a
circuit that will have more than one input.  One of the inputs needs to be
capable of producing the full output range needed in the circuit.  But, I
also want to limit (or clamp) the output so it does not exceed my
predetermined values.  The sum of the inputs might normally cause that to
happen.  I cannot solve this with scaling.  So, I need to consider efficient
ways to clamp the output to within a certain range.  I have an idea that
will work.  But, it is not as part efficient as I would like to be.  So, I
would appreciate hearing from others about their approach to this issue.

Thanks
Larry Hendry