I would like to add an adjustable A.C. current limiter upstream of my DUT.
I know that a simple solution some people use is to wire an incandescent bulb in series but this is not really adjustable unless you have multiple bulbs, etc.
I was wondering if there is a simple active circuit, perhaps using IGBT's or TRIACs to shut off the circuit based either on voltage across a sense resistor either in series with the circuit or maybe better in an inductive sense loop created by a couple of turns around the voltage line.
Ideally, the current limit would be settable with a potentiometer, bonus if there is a digital display of the limiting current...
I could probably hack together some type of circuit, but was hoping to see if anyone has any simple or off-the-shelf examples.
Any thoughts?