Electronic pervasiveness in vehicles brings EMI challenges: Page 4 of 4

August 06, 2019 //By Felix Corbett, TTI
Electronic pervasiveness in vehicles brings EMI challenges
The integration of more and more electronics in cars is being driven by automotive industry trends such as the ‘connected car’, increased used of ADAS (advanced driver assistance systems), and the drive towards semi- or even fully autonomous vehicles. The potential for EMI/EMC issues is therefore dramatically increasing with this growing pervasiveness of electronic systems and their physical proximity within the car. In addition, EMI will be an even greater issue in electrically powered vehicles that rely on high-current systems in the automotive drivetrain with the potential for significant transients.

Inductors can have the same protection mechanisms. Surface-mount inductors and dual-winding /common mode chokes will often be based on ceramic core technology, offering stability and high-temperature performance, such as those from Bourns and TDK Electronics.

Although automotive EMC standards compliance starts with system considerations, design for minimum EMI and susceptibility, and careful whole-vehicle analysis, there is also a large armoury of suppression and filtering components that can be used to ensure interoperability between the huge range of high- and low-frequency control and communications systems within the modern car.

About the author: Felix Corbett is Director Supplier Marketing Europe, TTI.


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