3-in-1 Electric Vehicle Unit: 48V Inverter, Onboard Charger, DC/DC Converter

Electric vehicles (EVs) are transitioning from traditional distributed systems to a centralized architecture to reduce size, weight, and cost. This 3-in-1 system integrates a traction motor controller, onboard charger, and DC/DC conversion for auxiliary loads into a single unit. This integration streamlines vehicle assembly by reducing wiring harness complexity and part count. Within the 3-in-1 module, all functions are managed by a single MCU, further reducing system cost and complexity.

System Benefits:

• A powerful MCU controls multiple functions simultaneously, reducing BOM count and system complexity.
  • The internal Resolver/Digital Converter (RDC2) and motor control unit (EMU2) of the MCU reduce CPU load, efficiently controlling motors with minimal CPU involvement.
• GaN-based PFC is highly efficient, reducing system size and power consumption.
• Integrating multiple functions into a centralized unit reduces wiring harness complexity.