I have a hall effect current sensor with a 0-5V output. Zero current flow is 2.5V out.
It is monitoring a 20khz motor drive signal.
I want to pass thru signals from 0-2.5V unmolested but want to reduce signals over 2.5V by an amount lets call it 20%.
What could we do to do that?
I was thinking OP amps, but I can't think of way to only reduce the signal once it is over 2.5V
Any brilliant ideas? Thanks Peter
It is monitoring a 20khz motor drive signal.
I want to pass thru signals from 0-2.5V unmolested but want to reduce signals over 2.5V by an amount lets call it 20%.
What could we do to do that?
I was thinking OP amps, but I can't think of way to only reduce the signal once it is over 2.5V
Any brilliant ideas? Thanks Peter