Wilson Current Mirror Mosfet. I built a super wilson current current mirror. The iin is 4 20ma at 24vdc.
It provides a much more accurate input to output current gain. Needless to say that george r. A wilson current mirror is a three terminal circuit that accepts an input current at the input terminal and provides a mirrored current source or sink output at the output terminal.
The mirrored current is a precise copy of the input current.
9 the full 4 transistor npn wilson current mirror it can be shown see the analog devices reference that this configuration significantly reduces any base current mismatches that may occur. The operational amplifier provides feedback that maintains a high output resistance. M 1 and m 2 are in active mode while m 3 and m 4 are in ohmic mode and act like resistors. From the name of george r.