Visit the Newsroom and browse the latest news articles and press releases to find out more about Delphi.

About Us

With a presence in more than 150 countries, and a global network of over 2750 service centres, Delphi aftermarket provides OE specification end-to-end solutions from components to sophisticated software solutions.

Combined Inverter and DC/DC Converter

Delphi Combined Inverter and DC/DC Converter (CIDD) is our OE solution for hybrids (HEV), plug-in hybrid electric (PHEV), and battery electric vehicles (BEV) that delivers maximum power density in a lighter, smaller, cost-effective package.

As the market for electric cars rapidly increases, independent aftermarket garages will need the right replacement part for the repair. That’s why Delphi is offering exact OE performance with our power electronic aftermarket parts.

OE Part Number


DT Part Number


BMW 225XE (F45) , X1 (F49), M5 Sedan (F60)


What is the difference between an inverter and DC/DC converter in an electric vehicle?

Much like how internal combustion engines and alternators work together on conventional vehicles, hybrid cars and electric motors use inverters and converters to manage power to and from the battery pack to the motors and other on-board systems.

Inverters transform direct current (DC) from the battery into alternating current (AC) to power the vehicle. Inverters also control the motor and convert it to a generator, transferring braking energy back into the battery. 

Converters control the DC voltage from the battery, either stepping it up or down based on the system and the power needed. DC/DC converters usually step down the high voltage from the battery pack to the 12-volts used by radios, headlights, and more. 

An OE solution for aftermarket power electronics

Inverters and converters work together to manage the vehicle's electric drive and accessory systems. However, many of today’s inverters and converters can be complex, expensive, and prone to failure from excessive heat. They are also heavy and take up a lot of room on the vehicle, compromising both trunk and passenger compartment space. Delphi OE solution combines the inverter and DC/DC converter into one unit.

Delphi CIDD is cost-effective and saves vital weight and space in hybrids (HEV), plug-in hybrid electric (PHEV), and electric vehicles (EV). And by leveraging patented OE technology - Viper-enabled inverter’s double-sided cooling - it tackles the issue of overheating, allowing higher power outputs from a smaller package and increased range.

Combined Inverter and DC/DC Converter (CIDD)

  • Enhances durability and reliability through features designed to withstand under the hood and environmental factors such as debris and temperature extremes.
  • Improves voltage distribution functionality, enabling both low-side and high-side power for everything from headlights to power steering and air conditioning systems.
  • Provides maximum packaging flexibility and space savings by moving the DC/DC unit from its standard location in the rear to the front of the vehicle.
  • Enables better power range and minimizing power losses through the elimination of cabling, cooling hoses, connections, and housings, all while simplifying maintenance and repair.

To learn more about OE quality aftermarket EV parts you can trust,  contact your Delphi representative today.

The Delphi Difference

  • 100 years of OE experience, supplier to the world’s top automakers
  • OE heritage and knowledge built into every aftermarket part
  • Comprehensive portfolio for a wide range of vehicles and model years
  • Streamlined SKUs for easy inventory management
  • Support through tools, tips and training

Related product resources and downloads

    Power Electronics Disclaimer

    Jul 13, 2022, 10:07 AM
    Title : Power Electronics Disclaimer
    Categories :
    • Inverters
    • Power Electronics
    Media type : Document
    Document type : Instruction Manual
    DTBX145B Disclaimer
      training portal

      Visit our Technician Library for access to Documents and Downloads

      Get in touch

      I have read and accept the <a href="/legal/terms-conditions">Terms of Use</a> and <a href="/legal/privacy-policy">Privacy Policy</a>

      The specified form no longer exists or is currently unpublished.
      where to buy

      Find out where to buy Delphi parts

      where to repair

      Find your nearest Service Centre

      Select your Region