Power Electronics
for Industrial and Light Electric Vehicles

Our Solutions for Industrial and Light Electric Vehicles

More and more industrial vehicles such as forklift trucks now run on electric power. In fact, what was once state of the art for indoor vehicles, is now increasingly finding its way into outdoor vehicles, as powertrain electrification continues to advance and enter new vehicular applications. Today, power electronic systems are as commonplace in motorbikes, quads and other light electric vehicles as they are in agricultural and construction vehicles.

The SKAI 3 LV converter/inverter system is a platform solution that is designed for use in combination with existing or optimised controller systems, enabling the quick development of optimised, cost-efficient custom solutions for industrial and light electric vehicles. The compact design of the SKAI 3 LV makes it the right fit for use in industrial forklift trucks as well as in other industrial or road vehicles. More than 1.5 million SKAI 3 LV systems are in the field today.

Converter/Inverter for Electric Drive Systems


Ultra Compact MOSFET Inverter Platform

SKAI 3 LV was built as a platform for low-voltage inverter systems for on- and off-road applications. This platform constitutes the 3rd generation of low-voltage inverter systems and the 7th generation of MOSFET inverter technology developed by SEMIKRON, with more than 1.5 million MOSFET inverters in the field.

To create an optimized application-specific motor control system, simply integrate a customized control board. The SKAI 3 LV platform is based on the same power-technology found in high-voltage, high-reliability applications today, providing access to high-power, maximum reliability technologies across a wide range of low-voltage on and off-road applications.

SKAI 3 LV Production Line

3-phase MOSFET inverter system up to 55kVA

Key Features

  • For compact designs
  • 30kVA/l power density
  • Vbattery: 24VDC up to 96VDC
  • 600Arms peak current during acceleration
  • Easy-to-use gate driver
  • IP66 enclosure
More about SKAI 3LV


Converter for On- and Off-Road Vehicles up to 800V

SKAI 2 HV comprises a versatile 3-phase AC/DC and DC/AC converter platform designed for use in electrified vehicles. It covers key requirements such as high power density, exceptional ruggedness and automotive EMI compliance. The integrated motor control software SKAIware ensures highly efficient operation of the electric drive train.

Short facts

Key Components

  • Compact integration into IP67 enclosure
  • Voltage, current and temperature sensors
  • Gate driver with protection
  • IGBT power semiconductors
  • Fully programmable digital signal processor
  • EMI filters
  • Versatile cooling system (liquid cooled, forced air cooled, base plate)
  • DC-link capacitors
  • Motor control software


The SKAI 2 HV power electronic platform comprises highly integrated motor controllers, which provide the ideal powertrain solution for mobile electric and hybrid applications. Power densities of up to 24kVA/litre bring notable size reductions compared with other existing standard motor controller products. The systems are designed to operate with supply voltages up to 800VDC and with output power ratings up to 300kVA. The IGBT based SKAI 2 HV motor controller operates on sintered, 100% solder free 1200V power semiconductors and it features polypropylene film DC-link capacitors, all integrated into a waterproof IP67 enclosure. The compact motor controllers can withstand high vibration amplitudes up to 10gRMS.

SKAIware motor control software adds to the system function and finishes off this tried-and-tested package for the SKAI 2 HV nicely. SEMIKRON provides engineering services to support customers with the integration of SKAI 2 HV motor controller systems. Other available services include lifetime estimation, field application support, individual parameterization of motor control software, and more.

Product range

Versatile SKAI 2 HV off-the-shelf versions are available.. Various optional services also exist, such as end-of-line flashing of customer specific software, lifetime estimation based on application profile analysis, field application support, individual parameterization of motor control software and further services (on request).

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Power Modules for Electric Drive Systems (EDS)


SKiM® 93

High reliability design using sinter technology

Power Modules for Auxiliary Inverters


Exceeding the standard for superior performance


SEMITOP E1/E2 represent the SEMITOP platform’s natural evolution to an enhanced package, offering the best footprint, an extremely flexible architecture and high performing solutions at optimized system cost.

Integrated with the latest Si and SiC chip technologies, SEMITOP E1/E2 offers a competitive platform. Thus able to address the power modules demanding environment where high performance, innovation, quality standards and cost are the key winning factors.

Key Features

  • PCB based and press-fit connected baseplate-less industry standard power module in two housing sizes
  • 650V and 1200V: 10A to 100A IGBT 4 and IGBT T7
  • CIB and sixpack topologies
  • Optimized mounting concept provides lowest thermal resistance in class
  • Increased power density thanks to Generation 7 IGBT T7
  • 1200V Hybrid and full SiC modules up to 250A

More about SEMITOP E1/E2