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

How to check a NOx sensor

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Sensors Vehicle Electronics & Engine Management How to Technicians 1 min read

Resource Highlights

A vehicle’s NOx sensor is one of the most complex pieces of kit you’ll come across. They’re tricky to test and difficult to diagnose. But in a few simple steps you’ll be able to pinpoint potential issues with a quick NOx sensor check.

Find out if a vehicle’s NOx sensor is the cause of engine issues with some pointers from the Delphi experts. Watch our video to discover:

What to look for on the wiring diagram
Which tests to perform for a quick diagnosis
How to operate the diagnostic tools you’ll need

How often do NOx sensors go bad?

NOx sensors don’t have an expected lifespan, as each individual vehicle and set of driving conditions can have different effects on the performance of the sensor. However, a NOx sensor is a relatively delicate piece of kit, which means it may need attention at some point.

Can you repair a NOx sensor?

NOx sensors cannot be repaired as they are a complex component, with multiple measurement chambers. For NOx sensors you must diagnose, test, and replace.

Can a NOx sensor be cleaned?

We would not recommend cleaning the NOx sensor due to its sensitivity. Replacing a NOx sensor would be the preferred course of action if dirt is clogging up the sensor.

Can I drive with a bad/faulty NOx sensor?

No. A faulty NOx sensor may prevent the engine from maintaining its emission standards at an acceptable level, or in more extreme circumstances prevent the engine from starting at all. With a bad NOx sensor the vehicle is likely to go into Limp Mode, which should indicate there’s an issue with the engine to be addressed as soon as possible.

Is a NOx sensor the same as a lambda sensor?

No, the two components are not the same. A NOx sensor is used to measure the levels of oxides of nitrogen being emitted, while the lambda sensor is used to measure the amount of oxygen present in the exhaust gas.