250kW 800V SiC EV Traction Inverter

250kW 800V Grid Inverter

(In Development)

Enhanced Powertrain Solution

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High-Power Inverter

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Hillcrest EV traction inverter

250kW 800V SiC EV traction inverter

The Hillcrest 250kW 800V SiC EV traction inverter leverages a new class of inverter technology that solves many common challenges faced by today’s EV powertrains. Lighter, more compact and more efficient than current inverters, our inverter technology enables reduced overall vehicle weight, increased payload and range capability and reduced heat production/loss, thereby optimizing battery and performance reliability.

Hillcrest EV Traction Inverter Differentiators

The Hillcrest high efficiency inverter is a new class of inverter technology that solves many common challenges faced by today’s electric power systems. Three key differentiators set the Hillcrest inverter technology apart:


First traction inverter to achieve inverter efficiency exceeding 99%.

Smaller + Lighter + More Powerful

The combined benefits of the Hillcrest inverter enable the smaller, lighter and more powerful capabilities required of next-generation EVs.

System Reliability + Performance

By eliminating inverter losses, the Hillcrest inverter reduces the thermal management needed across the entire powertrain system. This can generate substantial savings, reduce system complexity and improve system reliability by reducing stress on power devices.

System-wide Efficiency Gains

Hillcrest inverter technology eliminates the traditional design trade-offs faced across the power industry – deploying higher switching frequencies historically has meant a greater increase in losses (lower system efficiency, higher heat).

The Hillcrest inverter technology enables power applications to leverage higher switching frequencies AND realize improved traction motor performance and reliability AND operate at higher power levels without compromising efficiency.

At the intersection of range and cost considerations, the traction inverter remains the epicenter for innovations aimed at unlocking further EV efficiency and range gains.

By achieving highest inverter efficiency AND industry-leading power density, EV OEMs could replace many of their current design trade-offs with possible opportunities:

  • Reduce battery size and/or
  • Reduce weight and/or
  • Reduce complexity and/or
  • Reduce cost



Specifications Highlights


  • 250 kW continuous | 350 kW peak
  • 800 V nominal | 1,000 V peak



  • Automotive Standards
  • Mass Production
  • Use of Off-the-Shelf Components



  • 6.5 Litres



  • ~50 kW/L



  • Summer/Fall 2022

Full Specifications

Description Expression Value
Rated Voltage VN 800V
Minimale Input Voltage Vmin 470V
Maximum Input Voltage Umax 1000V
Maximum Intermediate Circuit Current Idc_max 400 A
Expected Top Performance Smax 350 kVA
Expected Rated Power S 250 kVA
Maximum Phase Current Iph_max 360A
Phase Current Iph 260A
Revolutions N Variable
Pole Pairs p Variable
Sine Frequency fsin Variable
Switching Frequency fsw 50kHz nominal 5 kHz-100kHz Variable
Environment Temperature Tamb -40°C…125°C
Coolant Temperature (water cooling) TCool -40°C…70°C

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