Powertrain Electrification Power Electronics

High Voltage Inverter 400V Si

Last update: 05 Sep. 2023

What is a 400V inverter?

The 400V inverter is the brain at the heart of the electric powertrain, it controls the electric motor. It converts Direct Current (DC) from the battery to Alternative Current (AC) to power the electric motor. It can also be used in reverse mode to charge the battery by transforming kinetic energy from the vehicle into electrical energy that can be stored in the battery. Valeo inverters are based on a scalable platform able to suit Si or SiC, for 400V & 800V. It is based on a highly standardized hardware and software architecture.


What are Valeo 400V inverter benefits?

  • Valeo proposes a complete range of inverters as a platform
  • Si IGBTs for standard performances and SiC technology for upper/premium applications, enabling double power density and energy saving
  • Inverter designed with robust proved safety concept ASIL C & D
  • High experience of mass production design, in production since 2014 in France, Hungary and China production centers
  • Standardized products to address a complete OEM electric vehicle platform

Valeo 400v inverters specifications

  • Design compatible with 400V or 800V battery
  • Modular approach from 60 to 300kW peak
  • Efficient water-cooled solution with qualified power modules
  • Communication channels CAN, HSCAN, Flexray, Ethernet, CCP
  • Supervisor functions can be integrated in the product
  • Suitable for BEV, PHEV or HEV solutions
  • 2021


  • 3M

    lines of SW codes

  • 15,000

    requirements managed

Vehicle type

  • Passenger car
  • Bus
  • Truck
  • Robot taxi
  • Motorcycle
  • Bike
  • Droid
  • Off road

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