EMI (electromagnetic interference) mitigation is a critical step in the design process in most electronic systems, and especially so in the automotive world. In many cases, automotive OEM emissions requirements are even more stringent than both national and international standards bodies like the FCC. Unfortunately, by their nature, switching regulators are sources of EMI; but, in order to keep power supply designs small and efficient, switchers are a critical component. So how can you reap the benefits of a switching regulator while still meeting challenging EMI requirements?
As the number of complex electronic features in vehicles increase, body control modules (BCMs) are rapidly evolving to keep up. All semiconductor devices in a BCM have one thing in common – they all need power. This training series will go over the various power topologies needed in a BCM in a vehicle.