Hi,
I am repairing a custom signal generator that is designed to produce a 200V, 1-2 millisecond pulse of current in the 1-100mA range, with minimum current output down to 1mA.
The device receives 2 control signals: 5V pulse to trigger the 200V output pulse, and a variable voltage to determine the current (0-5V).
I feel pretty confident about measuring the 200V output signal, but I am wondering about measuring the current.
I have one of the signal generators that 'works', and I want to measure it's functionality and then use to calibrate other devices after repair.
My lab has a Siglent SHS820 portable scope, and a Siglent SDS1202X-E.
I do have a uCurrent Gold, but I believe the 200V signal is out of spec for using it?
Do I need to build my own current sense circuit? Is there a simple way using my test equipment to get an accurate current measurement?
Or is there a current probe that that would measure in the range of mA that can be recommended?
Cheers!