Current measurement

Discussion in 'The Projects Forum' started by manjuarun, Mar 22, 2010.

  1. manjuarun

    Thread Starter New Member

    Mar 8, 2010
    Hi guys,

    Anybody of you please review my circuits for a current measurement project based on rogowski coil.
    Part 1 - Rogowski coil
    Using standard coil giving output 1mV - 100mV ( for current range 50A - 150A load current @ 50Hz)

    Part2 - Protection Circuit
    using diode- Attached the circuit.Please review it. How do we put values for components?
    Part3 - Amplifier
    Using differential amplifier(for reducing common mode noise) with gain 100.Attached the circuit.Please review it.
    Part3 - Integrator
    Attached the circuit
    Part4 - Filter
    Attached the circuit
    Part5 - Clamper
    Attached the circuit
    Part6- ADC & controller
    using PIC micro controller

    Please review the circuits I attached. How do we put values for each components?