Traction inverters built around silicon carbide.
Three power classes from 150 kW continuous to 250 kW continuous. Four-quadrant operation, liquid-cooled, IP67 sealed. Developed against ISO 26262 ASIL-C processes.
- Continuous
- 150–250 kW
- Peak (30 s)
- Up to 450 kW
- DC bus
- 200–850 V
- Peak η
- ~98%
- Ingress
- IP67
- Process
- ISO 26262
Joulepoint
Hardware · Automotive Traction
Power density, control loop, safety — engineered together
- Gate-skew target
- ≤50 ns
- Control loop
- 1 ms
- Functional safety
- ASIL-C
- Vehicle interface
- CAN-FD
Across paralleled SiC half-bridges.
Field-oriented control with real-time diagnostics.
ISO 26262 process artefacts available.
CANopen / J1939 application profiles.
One platform — three current-rated power stages
Urban delivery and 2W / 3W traction class
Liquid-cooled 330 A power stage tuned for urban delivery, two-wheeler swap fleets and three-wheel commercial platforms. Same controller and firmware stack as the higher-current models — faster integration if you upsize later.
- 200–850 V DC bus covers both 400 V and 800 V architectures
- Field-oriented control with shaft-aware compensation
- CAN-FD diagnostics with shadow logging for fleet telemetry
Commercial transport — the workhorse rating
Designed for transit-bus, ICV and light commercial platforms running long duty cycles. Thermal envelope qualified to sustained 200 kW with derated 350 kW peaks for hill-grade and acceleration events.
- Four-quadrant operation with regenerative braking blend
- Liquid-cooled (water-glycol) at 6 LPM nominal flow
- Comprehensive fault logging + thermal derating
Heavy-duty + performance EV class
Top-of-stack 600 A power stage delivers 250 kW sustained / 450 kW peak. Multi-motor coordination ready (CAN-bus master + slaves). The reference platform for our 800 V SiC programmes.
- Compatible with PMSM and AC induction motor topologies
- ISO 26262 ASIL-C process for safety-critical applications
- Bench characterisation with Yokogawa WT5000 power analyser
Technical specifications
| Parameter | 330 A model | 460 A model | 600 A model |
|---|---|---|---|
| DC input voltage range | 200–850 V (operational); 50 V (service) | 200–850 V (operational); 50 V (service) | 200–850 V (operational); 50 V (service) |
| Continuous output power | ~150 kW | ~200 kW | ~250 kW |
| Peak output power (30 s) | ~250 kW | ~350 kW | ~450 kW |
| Peak efficiency | ~98% | ~98% | ~98% |
| Supported motors | AC induction & PMSM | AC induction & PMSM | AC induction & PMSM |
| Operation | Four-quadrant | Four-quadrant | Four-quadrant |
| Cooling | Liquid (water-glycol) | Liquid (water-glycol) | Liquid (water-glycol) |
| Ingress protection | IP67 sealed | IP67 sealed | IP67 sealed |
| Operating temperature | –40 °C to +85 °C | –40 °C to +85 °C | –40 °C to +85 °C |
| Control interface | CAN bus (500 kbps; CANopen/J1939) | CAN bus (500 kbps; CANopen/J1939) | CAN bus (500 kbps; CANopen/J1939) |
| Standards | ISO 26262 ASIL-C process; IEC 61800-5-1 | ISO 26262 ASIL-C process; IEC 61800-5-1 | ISO 26262 ASIL-C process; IEC 61800-5-1 |
Build your own traction inverter with Joulepoint as your engineering partner.
For vehicle OEMs and tier-1 manufacturers — we are your in-house engineering team for your EV traction programme. Co-engineered, certified, manufactured to your name. You own the IP, the brand and the customer relationship.
Your brand. Your form-factor.
Mechanical, label, firmware boot screen, OBD identification — branded to your platform. Joulepoint is the engineering, your customers see your name.
Co-engineered to your spec
We start with your system requirements (power class, voltage rails, comms, certifications). Our team works alongside yours from architecture to BOM freeze.
Source artefacts handed over
Schematics, BOM, firmware source, AUTOSAR module catalogue, ISO 26262 process documentation, EOL test scripts — all packaged for your manufacturing partner.
Long-term technology partnership
Roadmap alignment, regulatory tracking (AIS / IEC / UN-ECE), field-data driven iterations. We stay engaged after start of production.
Send a one-pager — power class, target vehicle, certifications, timeline. An engineer responds within one business day.
Same engineering. Your nameplate.
The reference design ships with Joulepoint branding. For OEM programmes we re-skin mechanicals, firmware boot screen, mobile app and packaging to your identity.
Ships under the Joulepoint name with our nameplate and firmware identity.
Same hardware platform, re-skinned to your brand. You own the IP, sales channel and support relationship.
What gets re-skinned
- Mechanical nameplate & label artwork
- Firmware boot screen & UI identity
- Companion mobile / driver app theming
- Packaging, EOL test labels, OBD VIN data
Three ways to work with us.
Every conversation starts with an engineer — not a sales pitch. Pick the path that fits your team.
R&D collaboration
Co-develop a prototype with our power-electronics and embedded teams. Joint IP, agreed milestones.
Discuss collaborationEnterprise deployment
CSMS, Joulepoint Edge, and Fleet deployments with named engineers on your account.
Talk to salesOEM integration
Onboard chargers, traction inverters, VCU/ECU integration for vehicle programmes.
Start an OEM brief