hi.
i want to sense current at the high voltage side.
i have the buck interleaved converter with 3 legs. i want to sense the voltage at all 3 legs and output voltage is 126V.
but i dont find current sense amplifiers with 126V of common mode voltage. can anyone help me.
Thank you

 

How about this.

 

Here is another possible solution. I think crutschow's suggestion will be more accurate.

Les.