Twin positive voltage senser HELP

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A user is seeking assistance in designing a small electrical circuit to control an output voltage between 0 to 6 volts, sourced from a 24-volt commercial vehicle. The challenge involves two positive feed wires, one with a constant 27 volts and the other varying between 24 and 22 volts, resulting in an output voltage of 3 to 5 volts. The required circuit must measure this voltage and produce a similar varying output, while ensuring complete isolation from the original circuit. Additional power supplies of 3, 5, 12, and 24 volts are available for the output, which requires minimal current. The user suggests using an isolation amplifier for this application.
sirdoalot
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Hi Folks

Can anybody help me; I am looking for a small electrical circuit
to control an output voltage in DC between Zero to 6 volts.
The input for the circuit is from a 24-volt commercial vehicle,
but my difficulty lies in the fact
It comprises of two positive feed wires driving an electric magnet.
One of the feed wires has 27 volts traveling through it constantly,
the other has a varying voltage between 24 and 22 volts,
this gives an output voltage of between three and five volts
when measured with a voltmeter across the two wires.
The circuit I am looking for Needs to be able to measure this voltage
and output a similar varying voltage but completely isolated from the first circuit.
I have available other source supplies to power the output IE 3 volt, 5 volt,
12 volt, 24 volt.
The output Is just for sensing so needs very little current.
 
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Use an iso amp.

- Warren
 
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