EMI Suppression Filters (EMC and Noise Suppression)BCI tests

BCI tests Measurement environment

Test level	Closed-loop method, 100 mA
Test frequencies	1 MHz to 400 MHz
DUT	Driver IC (made by company B)
Evaluation items	Common mode choke coils （DLW43SH510XK2 / DLW43SH101XK2）

for automotive LANs Suppression of noise in CANs using common mode choke coils

BCI tests, Table of equipment used

BCI test results

BCI tests were conducted as per the closed-loop method (100 mA).

: Malfunctioning was suppressed by adding choke coils in the DLW43SH series.
(100 mA was cleared at all frequencies (1 MHz to 400 MHz).）

Summary of BCI test results

When no filter was used, malfunctioning occurred at frequencies from 4 MHz to 15 MHz, but when common mode choke coils were added, the malfunctioning was suppressed.
With the DLW43SH series, malfunctioning was suppressed, and 100 mA was cleared at all frequencies (1 MHz to 400 MHz).

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EMI Suppression Filters (EMC and Noise Suppression)BCI tests

BCI tests Measurement environment

BCI test results

Summary of BCI test results

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