Hi All,
At work we do a lot of pulse testing for IGBTs and want to come up with a rig that does the pulse testing automatically and process all the data automatically.
Ideally on the test side, you would enter desired pulse current and it would run the test until that current is reached both for turn on and turn off.
On the processing side, Ideally it would de-skew the current measurement for the delay of the rogowskis', remove any offset for the rogowski and process all the data. I would also to include Vce sat and Vf measurements in there as well. Processing the data takes quite a lot of time so fully automating it would be great.
The ,first bit is relativity easy to do with a micro controller however getting all the data is a bit trickier.
The easiest way of getting the data would be to connect the scope to excel somehow and write vba scrips to process the data. The problem that I see with this is that we have some old scopes with really good specs, however I dont think they have the functionality to connect directly and stream data to a PC.
Another way I think may work is to find some high sample rate ADC boards with memory on them so that data can be captured on them and then streamed to a PC at will since I would require a lot of channels. Does anyone have any idea were to start looking in this area?
Cheers!