Circuit Protection Challenges for Battery Management Systems

The market for higher-voltage automotive systems is expanding. The number of electric vehicles that use battery-powered drive systems having voltage equal to or higher than 48V is expected to grow by double digits in the coming years. As both consumers and governments press toward less reliance on fossil fuels and demand improved air quality via lower or zero emissions, electric vehicles are moving to the forefront. At the same time, electric systems comprise a greater percentage of overall automotive function. Components that used to be driven mechanically or hydraulically now require higher voltage and more powerful batteries. Onboard entertainment, safety, and convenience features add to the electric draw.