CURRENT MEASUREMENT CIRCUIT COMPRISING A MUTUALLY COUPLED TRANSFORMER AND AN INTEGRATION CIRCUIT

摘要

A current measurement circuit comprising a mutual inductance transformer 3, an integration circuit 2, and a dither circuit 1 which adds a square wave to the signal from the transformer 3 before the input of the integration circuit 2 in order that the integration circuit 2 provides a signal representing the measured current perturbed by a triangular dither signal.