![]() ![]() ![]() ![]() Redundancy design can also be seen for fault tolerance purposes. Because of this, the safety and functional safety aspects of a DC-DC converter are also critical. Their primary function is to transfer energy from a source (e.g., battery pack) to systems and devices that consume that energy (all electronics loads, particularly in the low voltage distribution network of a vehicle). If powertrain modules determine the performance of an electric vehicle (EV), DC-DC converters then play an important role in the stability and reliability of an EV. The Role of DC-DC Converters in Electric Vehicles In this article, we offer three recommendations addressing design aspects of DC-DC converters that will make a huge difference in their EMC performance. When it comes to designing an electromagnetic (EM) compliant product, some planning is crucial to help ensure product performance and keep costs under control. Another commonly seen mistake is a bad choice of switching devices, which often requires adding more filters later in the design process, significantly increasing costs and potentially jeopardizing the project. Poor DC link design contributes to poor conducted and radiated emissions. For a start, 90% of the EMI issues are associated with a ‘grounding’ issue. W hen helping clients in the automotive industry with their DC-DC converters to meet the stringent automotive EMC standards, I often find problems that share some common mistakes. Three Important Design Aspects You Must Get Right Before Designing a Converter ![]()
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