Power Modules Simplify Creepage and Clearance Design Solutions for Electric Vehicles

Arcing is not a new problem for electrical engineers, but if overlooked it can have tragic consequences. Learn how overmolding is the key to simplifying arcing issues in 48V automotive power systems.

Why overmolding is the key to solving arcing issues in 48V automotive power systems

What should design engineers be aware of for proper creepage and clearance in a 48V PDN?

Why is a 48V architecture more risky for creepage and clearance design?

Adhering to proper creepage and clearance standard ensures safety

Solving space constraints with high-density power modules

White Paper Overview

Arcing is not a new problem for electrical engineers, but if overlooked it can have tragic consequences. A malfunction within a vehicles’ electrical system raises concerns for meeting safety standards in EVs. The industry has relied on 12V power systems to supply power to vehicles since the 1950s; however, as technology advances, so must the industry. With EVs and PHEV models requiring more power, the transition to 48V power systems and high-voltage batteries is inevitable.
However, this move requires consideration concerning creepage and clearance safety requirements. Upgrading to a 48V bus and moving to higher voltage batteries and further complicates creepage and clearance specifications: this new architecture with the higher voltage of an 800V battery demands greatly increased creepage and clearance distancing, generating challenges in the size and spacing of electrical systems that opposes the goal of smaller, lighter power systems. Learn how overmolding is the key to simplifying arcing issues in 48V automotive power systems.