Onboard EV Chargers for Passenger and Commercial Platforms
High-efficiency AC→DC modules designed for global homologation, quiet thermal performance, and seamless integration into your vehicle control stack.
Designed for OEM Production Programmes
Joulepoint onboard chargers combine wide-bandgap power electronics with intelligent diagnostics. Each unit is validated for harsh environments, supports ISO 26262 functional safety workflows, and offers configurable communication stacks to match your vehicle architecture.
Compact thermal package
Aluminium liquid-cooled cold plate with integrated pump headers keeps junction temperatures under control during rapid AC charging.
Configurable communication
CAN 2.0B, LIN bridges, and optional Ethernet diagnostics deliver deep visibility without rewriting your VCU.
Safety built in
Meets AIS-038 Rev2, CISPR 25 Class 3, and ISO 21780 requirements out of the box with redundant isolation monitoring.
Manufacturing ready
Traceable serialisation, automated end-of-line test reports, and ERP integration reduce your PPAP timeline.
Variant Comparison
| Specification | 3.3 kW | 7 kW | 11 kW | 22 kW |
|---|---|---|---|---|
| Input voltage | 85 – 265 V AC single-phase | 175 – 265 V AC single-phase | 304 – 456 V AC three-phase | 304 – 456 V AC three-phase |
| Output voltage window | 200 – 450 V DC | 200 – 450 V DC | 400 – 650 V DC | 450 – 750 V DC |
| Nominal DC voltage | 330 V DC | 380 V DC | 540 V DC | 640 V DC |
| Max output current | 10 A | 20 A | 20 A | 40 A |
| Peak efficiency | ≥94% | ≥95% | ≥95% | ≥96% |
| Auxiliary power rails | 12 V / 24 V (dual rail) | 12 V / 24 V (dual rail) | 12 V / 24 V (dual rail) | 12 V / 24 V (dual rail) |
| Communications | CAN 2.0B (500 kbps) | CAN 2.0B + LIN gateway | Dual CAN 2.0B, ISO 15118 powerline pass-through | Dual CAN 2.0B, Ethernet diagnostics |
| Mass | 6.8 kg | 8.1 kg | 10.5 kg | 13.2 kg |
Environmental testing covers –40 °C to 85 °C operation, 95% relative humidity, and random vibration per ISO 16750-3. Custom housings and connector pin-outs are available upon request.
System Integration Toolkit
Joulepoint provides calibration files, CAN DBC definitions, Functional Safety Concept documentation, and reference wiring harnesses. Our engineering team supports DFMEA reviews and helps you tailor diagnostic trouble codes to your service tooling.
- Turnkey validation artefacts for AIS-038, AIS-048, and IEC 61851 compliance.
- Integration with Joulepoint CSMS for over-the-air firmware updates and health telemetry.
- Optional ISO 15118 / Plug & Charge enablement through our secure credentialing service.
Sample Development Timeline
- Two-week discovery workshop covering mechanical, electrical, and thermal interfaces.
- Eight-week prototype delivery with validation data pack and calibration files.
- Pilot production support with end-of-line programming, traceability, and QA sign-off.
Need a bespoke power stage or alternative connector layout? Talk to us about co-developing a variant for your platform roadmap.