04 / Power electronics research

Our Power Converters

A bidirectional, EMI-compliant converter family spanning on-board charging, DC power supplies and traction inverters.

20–500 kW developed power range

900 V maximum operating voltage

100–300 kHz switching frequency

15 μs control sampling period

Integrated energy control

Compact power.
Two-way Energy flow.

AALT has developed on-board battery chargers, DC power supplies, DC–DC converters and traction inverters for the demanding power and control requirements of electric transportation.

Bidirectional energy flow supports system-wide energy efficiency. Common-mode and differential-mode filtering is designed for CISPR 25 Class 5 compliance, the most stringent vehicle component class for conducted and radiated electromagnetic noise.

Advanced redundant control hardware operates SiC and GaN power modules at 100–300 kHz. A 15 μs sampling period enables precise current, speed and position control, while reported power density reaches 150 kW/L.

Bidirectional energy flow

CISPR 25 Class 5 design

Redundant controller hardware

SiC and GaN modules

Converter family

Multiple Architectures, Multiple Power Classes

20 kW 900 V on-board battery charger — On-board battery charger · 20 kW / 900 V

300 kW bidirectional DC power supply — Bidirectional DC power supply · 300 kW / 900 V

100 kW traction inverter — Traction inverter · 100 kW / 900 V

300 kW traction inverter — Traction inverter architecture A · 300 kW / 900 V

Second 300 kW traction inverter architecture — Traction inverter architecture B · 300 kW / 900 V

500 kW traction inverter architecture — Traction inverter architecture A · 500 kW / 900 V

Second 500 kW traction inverter architecture — Traction inverter architecture B · 500 kW / 900 V

Our Power Converters

Compact power.Two-way Energy flow.

Multiple Architectures, Multiple Power Classes

Compact power.
Two-way Energy flow.