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Automotive glossary

Inverter

The inverter converts the battery's direct current into alternating current for the electric motor, and back during regeneration.

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What is Inverter?

It is a power electronic unit with transistors switching very fast. It controls motor speed and torque. It is liquid-cooled in most vehicles. Modern inverters use silicon or silicon carbide transistors; silicon carbide reduces losses and is common in 800 V systems.

How it works

Transistors switch the DC on and off to create a three-phase AC waveform for the motor.

Why it matters for your car

Inverter faults cause loss of drive and warning lights. Cooling system problems can cause it to overheat.

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