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Prax Power

High Power Transformer for Megawatt Charging Systems

Market Trends

 The new MCS standard enables ultra-fast DC charging for heavy-duty electric vehicles. It supports charging levels of up to 3.75MW with voltages up to 1250V and currents up to 3000A, using a liquid-cooled connector.

Typical Requirements

  • High power density: 50kW to 1000kW per stage.
  • High input voltage range: 800Vdc to 1500Vdc.
  • Wide output voltage range: 400Vdc to 1200Vdc.
  • High operating efficiency: ~ 98%.
  • High operating frequency: 20kHz to 200kHz.
  • Good thermal management.
  • Low leakage inductance tolerance: ~ 10%.

PRAX approach: Transformer with integrated inductor

  • Optimized for DAB topologies with air cooling.
  • Shieled magnetic stray fields from leakage inductance.
  • Customizable design for power levels up to 100kW.
  • Working voltage: Up to 1500V.
  • Operating frequency: Up to 200kHz.
  • Hi-pot isolation: Up to 5000Vac.
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