Influence of the external magnetic field on operation of the new technology current-to-voltage transducers

The paper presents the electromagnetic current-to-voltage transducers with coils designed and manufactured in a multi-layer printed circuit board technology. The analysis of the influence of the external magnetic field caused by other devices on operation of the current-to-voltage transducer has been presented. The analysis of the electromagnetic field distributions has been carried out using the 3D field-circuit method based on the finite-element numerical method. The magnetic field distributions and the induced secondary voltages for several different cases have been presented. The results have been compared with tests of real-life models.