Common-Mode Chokes in CAN Networks: Source of Unexpected Transients

Texas Instruments

Published Date: 01/29/2008

Description

Common-mode chokes are frequently used in automotive CAN networks to increase system reliability with respect to electromagnetic compatibility (EMC). Electromagnetic interference emitted from an Electronic Control Module (ECU) through the CAN transceiver can be filtered thus limiting unwanted high-frequency noise on the communication bus. Another reason for using a common-mode choke is attempting

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