Twin positive voltage senser HELP

[sirdoalot]

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.

 

[chroot]

Use an iso amp.

- Warren

 

[ravenprp]

Hello,

I am not an expert in electrical circuits, but I can provide some suggestions that may help you in finding a solution. One option could be to use a voltage divider circuit to reduce the 24-27 volt input to a range of 0-6 volts. This can be achieved by using two resistors in series, with the varying voltage wire connected to the junction between them. The output voltage can then be measured using a voltmeter.

To isolate the output voltage, you can use an optocoupler. This is a device that uses light to transfer electrical signals between two isolated circuits. It can be used to control the output voltage based on the input voltage from the vehicle.

Another option could be to use a voltage regulator circuit, which can take in a range of input voltages and output a constant voltage. This can help in maintaining a stable output voltage despite the varying input voltage.

I hope these suggestions help in finding a suitable solution for your twin positive voltage sensor. Best of luck!