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.

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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

1 min read

Removing an HV battery from a Nissan Leaf

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Vehicle Electronics & Engine Management How to Distributors Shop Owners Technicians 1 min read

Resource Highlights

Removing a high-voltage battery from an electric vehicle is a potentially hazardous job. It must be done by following the right steps and safety precautions.

Matt, our Delphi expert, shows you exactly how to do it on a Nissan Leaf in this guide. He shows you how to:

Remove the battery covers and battery bolts
Choose the right PPE
Disconnect the cables
Test for the absence of voltage
Use a lifting table to lower the battery

Are there any further safety tips I should follow?

The high-voltage power system must be correctly shut down according to the manufacturer’s guidelines before you can disconnect it.
Even when the system has been shut down, it’s safest to always assume that the circuit is live, just in case.
You should notify the rest of your team that you’re working with high-voltage circuitry.
Prevent any possible reconnection by securely locking away the components you need.
Remove any jewellery, especially rings or watches, and anything metallic (such as coins or keys) in your pockets that may fall out.

Why is removing a high-voltage battery hazardous?

‘High voltage’ is generally considered to be anything over 60 volts. Today’s electric vehicles can produce voltages of up to 900 volts. Compare this to an ICE vehicle that operates with a 12 volt system, and you can understand how much greater the risk of electrocution is on an EV.

Are there different procedures on different vehicles?

The video above is a general guide based on a Nissan Leaf, but you should always read the vehicle manufacturer’s official guidance and procedure, as there may be further essential steps that you must take.