Hello,
I'm trying Google (without result) to find some basic example of transistor voltage-follower hi-current with 4 wires (sense at end).
It's like Kelvin measurement, but it make sure that desired voltage is applied to end of device, no matter what kind of voltage drop is found on cables.
Like for example set 0.5V at output of follower -> push 10A -> lost 0.1V at long wires measure it by sense wires and correct value of follower to get 0.5V.
I saw this one time on laboratory power supply made by Voltcraft.
I'm looking for any basic circuitry to understand how this should be done - the less elements the better for understanding.
Any hints are welcome,
Regards
I'm trying Google (without result) to find some basic example of transistor voltage-follower hi-current with 4 wires (sense at end).
It's like Kelvin measurement, but it make sure that desired voltage is applied to end of device, no matter what kind of voltage drop is found on cables.
Like for example set 0.5V at output of follower -> push 10A -> lost 0.1V at long wires measure it by sense wires and correct value of follower to get 0.5V.
I saw this one time on laboratory power supply made by Voltcraft.
I'm looking for any basic circuitry to understand how this should be done - the less elements the better for understanding.
Any hints are welcome,
Regards