I know current sense transformers are use for measuring AC currents. I'd like to use one to the measure a DC link at 1A that could have a rapid surge to 10A (like in 1uS).
I only want to detect the surge and not read the SC level. I'd also like for it to be small since I'm only interedted in the surge. It doesn't even have to be accurate as I only need to detect the presence of the surge.
Would a small cored ferrite transformer something like 0.700"OD or smaller saturate from the DC current and not detect the high frequency surge?