Analysis of Reproducibility of Bulk Current Injection (BCI) Method and Examination of Single-Wire Current Injection (SWCI) Method

Abstract

This letter analyzes the test reproducibility of the BCI method, which is one of the immunity tests for automotive components. The analysis does not take a probability-based approach, but is carried out by using an experimental jig that ensures reproducibility for the wire placement and layout. The results of evaluation and electromagnetic field simulation show that sufficient reproducibility is guaranteed under conditions where the position and layout are guaranteed. Based on this data, the appropriate amplitude of the injected current when applying the BCI method to a single wire is also discussed.