Hi,
Anybody of you please help me to design an amplifier and an integrator circuit which will be using for rogowski coil output.
Specification
Current to be measured - 50 - 150A (rms)
Frequency Range - 45-65 Hz
Rogowski coil output - 1mV - 100mV
Opamp - should be of single supply with supply voltage 2.7-3.3V (It seems LT1630 , OPA338 etc are good . not sure!!)
Can anyone of you pls help me to design an amplifier and then an integrator for this application? Is differential amplifier to be designed(bcz of common mode noise)?
Thanks
Manju

 

First, if the current to be measured is 50 and the coil output is 1mv, then the current is 150A and the output is 100mv, the coil is not very good. Second, how much time is involved in the integration? Third, how much have you accomplished so far?

Giving us bad specifications, missing specifications, and no effort to even start designing a circuit gets bad results.