I have a 2400V, 1kW power supply being switched (Willamette HV, solid state, 10ns rise time) between an open load and the equivalent of 100pF. When the load is pulsed, the rail voltage of the power supply drops by approximately 5V and it recovers over ~500ms (100ms time constant). In order to solve a problem we are facing, I need to do the following:
1) Measure the voltage perturbation applied to the load and convert it to low voltage for signal processing. Essentially, I need to convert the 2395V > 2400V exponential rise observed on the output of the power supply to a 5V > 0V exponential rise.
2) Invert the low voltage signal with an option for variable gain such that it becomes an exponential fall from 5V > 0V
3) Offset the 5V > 0V exponential fall by 2400V and apply that voltage to the opposite electrode
Step two is trivial... I really need help with steps 1 and 3.
I was thinking of using 1 or 2 AD210 3 port isolation amplifiers (see attached data sheet) to accomplish steps 1 and 3. As there is no pspice model, I am unable to model this in OrCAD and test the part from a theoretical perspective. I am seeking your advice. Will the AD210 be able to accomplish steps 1 and 3? If not, does anyone have any thought on how to do this?
Thanks,
Eric
1) Measure the voltage perturbation applied to the load and convert it to low voltage for signal processing. Essentially, I need to convert the 2395V > 2400V exponential rise observed on the output of the power supply to a 5V > 0V exponential rise.
2) Invert the low voltage signal with an option for variable gain such that it becomes an exponential fall from 5V > 0V
3) Offset the 5V > 0V exponential fall by 2400V and apply that voltage to the opposite electrode
Step two is trivial... I really need help with steps 1 and 3.
I was thinking of using 1 or 2 AD210 3 port isolation amplifiers (see attached data sheet) to accomplish steps 1 and 3. As there is no pspice model, I am unable to model this in OrCAD and test the part from a theoretical perspective. I am seeking your advice. Will the AD210 be able to accomplish steps 1 and 3? If not, does anyone have any thought on how to do this?
Thanks,
Eric
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