I am trying to change the output of three ACS715 Current Sensor Carriers (0 to 30A) and display their outputs on some cheap Mini DC 0-30V LED Panel Voltmeters. They work fine but the issue is the 0.5 VDC output at zero amps and the 0.133 VDC/amp output from the current sensors doesn’t lend itself to easily figuring out the actual current value. I have a table on paper to do the conversion to actual amps but that isn’t convenient.
I am hoping someone has designed a simple circut to make the conversion. I was thinking of some sort of Op-Amp circuit where I could dial in an offset to zero out the 0.500 VDC at zero amps and a “gain” control to adjust the output to something meaningful.
These current sensors are really only designed to measure current in one direction.
Any ideas would be greatly appreciated,