EV TRACTION INVERTER PROTOTYPE
Revolutionizing Power Conversion at the Heart of the EV Powertrain
The traction inverter is the central nervous system of any electric vehicle, converting DC power from the battery into the AC power needed to drive the motor. Positioned at the intersection of performance, efficiency, and cost, it remains a critical focus for next-generation EV innovation.
At Hillcrest, we’ve reimagined what an inverter can do. Our 1000V | 350 kVA SiC traction inverter prototype integrates our proprietary Zero Voltage Switching (ZVS) Technology, enabling power applications to operate at both higher power levels and higher switching frequencies—without sacrificing efficiency.

Why It Matters:
Conventional inverters face a tradeoff between power density, efficiency, and thermal performance. Hillcrest’s ZVS-based inverter addresses these limitations head-on:
- Unmatched Efficiency: Delivers industry-leading inverter efficiency of up to 99.7%, virtually eliminating switching losses.
- Reduced Heat Generation: Operates cooler, enabling simpler and more cost-effective thermal management solutions.
- Compact and Lightweight: Smaller form factor means less weight and more design flexibility for OEMs and system integrators.
- Lower EMI: Ultra-low electromagnetic interference allows for easier compliance and less shielding, reducing overall system cost.
Built for the Next Generation of Electric Vehicles



Key Features:
Operating Input Voltage Range
400-940 VDC
Maximum Electrical Efficiency
Up to 99.7%
Nominal Voltage
800 VDC
Efficient Semiconductor Utilization
2.5mm2/kW
Continuous RMS AC Output Current
350 A
Power Devices
3 SiC modules
Peak RMS AC Output Current
400 A
HV Bus Capacitance
135 uF
Control Input Supply Voltage Range
9 -16 VDC
Ambient Temperature
-40°C…100°C
Nominal PWM Switching Frequency
50 kHz
Coolant Temperature (liquid cooling)
-40°C…70°C
Nominal Power Density
>50 kW/L
Communication
1 x CANbus
1 x RS422
Control Type
Current / Speed with Field Weakening and MTPA
Digital Input
>1 Digital Input
Motor Feedback
Resolver or Sin/Cos Encoder