Discover our scalable, automotive-grade integrated onboard charging units, DC/DC converters, intelligent BMS solutions, and fast-charging infrastructure platforms.
Automotive OEMs and commercial fleet managers are undergoing a structural transition from discrete electrical components to integrated multi-functional power electronic assemblies. As an enterprise OEM/ODM integrated onboard charger factory, we redefine vehicle powertrain efficiency, weight optimization, and thermal reliability.
In modern Electric Vehicle (EV) platform engineering, the Onboard Charger (OBC) functions as the critical link between AC electrical grids and the high-voltage (HV) battery pack. Traditionally, vehicles integrated standalone OBCs, low-voltage DC/DC converters, and Power Distribution Units (PDUs) in separate chassis enclosures. This legacy topology resulted in excessive wire harness weight, electromagnetic interference (EMI) vulnerabilities, severe space constraints, and elevated Bill of Materials (BOM) costs.
Our manufacturing facility specializes in custom OEM/ODM production of 3-in-1 and 4-in-1 Integrated Power Assemblies. By co-locating the OBC topology, high-voltage-to-low-voltage (HV-to-LV) DC/DC converter, and PDU into a single cast-aluminum liquid-cooled enclosure, global automakers achieve up to 40% reduction in total volumetric footprint, a 30% reduction in mass, and significant thermal dissipation advantages.
Explore how our OEM/ODM integrated onboard charger factories deliver unmatched reliability, customized firmware, and cutting-edge wide-bandgap semiconductor integration.
Integrating third-generation SiC MOSFETs to achieve ultra-high switching frequencies, drastically reducing magnetics size while reducing thermal losses by 45% compared to legacy IGBT topologies.
Engineered for smart grid integration. Our bidirectional OBC topologies support Vehicle-to-Grid (V2G), Vehicle-to-Home (V2H), and Vehicle-to-Load (V2L) emergency power delivery with full ISO 15118-20 compliance.
ISO 26262 functional safety architecture supporting up to ASIL-D level. Featuring over-voltage, over-current, reverse polarity, and intelligent thermal throttling protection algorithms.
Customizable AUTOSAR firmware stacked with CAN-FD and UDS diagnostic protocols, enabling seamless integration with Vehicle Control Units (VCUs) and Over-The-Air (OTA) telemetry updates.
Precision flow-channel cold plate design ensures uniform temperature distribution across power modules under continuous full-load operating conditions (-40°C to +85°C ambient).
IATF 16949 certified manufacturing lines equipped with automated SMT, 3D Solder Paste Inspection (SPI), Automated Optical Inspection (AOI), and 100% full-power burn-in testing.
Compare our enterprise OEM/ODM integrated onboard charger specifications against legacy standalone power conversion components.
| Technical Parameter | Standalone Legacy OBC | Next-Gen 3-in-1 Integrated OBC Assembly | OEM Customization Capability |
|---|---|---|---|
| Input AC Voltage Range | 85V – 265V AC (Single Phase) | 85V – 480V AC (1-Phase & 3-Phase Compatible) | Custom Grid Protocols (US/EU/JP/CN) |
| Output Nominal Battery Voltage | 400V Platform Only | Dual-Platform: 400V / 800V High-Voltage Systems | Custom Voltage Curves (200V-950V) |
| DC/DC Converter Integration | External Unit (Separate Cable) | Internal 2.5kW – 3.5kW Low-Voltage Auxiliary DCDC | Configurable LV Output (12V / 24V / 48V) |
| Peak System Efficiency | 92.5% – 94.0% | > 96.8% (SiC Switching Topology) | Efficiency Curve Optimization |
| Power Density | 1.2 – 1.8 kW/L | 3.2 – 3.6 kW/L | Mechanical Packaging Customization |
| Protection & Sealing | IP65 Rating | IP67 / IP69K Fully Hermetic Die-Cast Enclosure | Custom Connector / Gland Orientations |
| Communication Protocols | Basic CAN 2.0B | CAN-FD / LIN / AUTOSAR / ISO 15118 (V2G) | Custom DBC File & Firmware Stack |
As global electrification accelerates across passenger cars, commercial delivery fleets, e-motorcycles, and off-highway industrial robots, procurement strategies are shifting rapidly.
The transition from traditional 400V battery architectures to 800V high-voltage platforms is no longer restricted to luxury sports cars. Commercial haulers and mass-market EVs are adopting 800V systems to cut charging times in half and reduce vehicle cabling weight. OEM/ODM integrated onboard charger factories must support dual-voltage capability, enabling seamless AC charging across diverse global power grids while maintaining thermal stability.
Regulators in North America and Europe are pushing for mandatory bidirectional capability in next-generation electric vehicles. V2X (Vehicle-to-Everything) technology allows EV batteries to act as distributed energy storage units. Modern factory procurement guidelines require OBC suppliers to implement grid-tied inverter topologies capable of delivering clean sine-wave AC power back to home systems or public utility grids.
The market demand is consolidating toward maximum functional integration. By embedding the Battery Management System (BMS) telemetry gateway directly into the integrated power box, automakers eliminate multiple microcontrollers, reduce board-to-board interconnects, and streamline software safety audits under ISO 26262 guidelines.
With solid-state battery solutions achieving energy densities above 320Wh/kg, integrated onboard chargers are expected to feature dynamic, AI-assisted charging profiles. Custom firmware must dynamically adjust voltage ramps and thermal thresholds to maximize cycle life for advanced lithium-sulfur, sodium-ion, and solid-state battery cells.
From initial CAD packaging and circuit simulation to IATF 16949 mass production, our engineering team delivers tailored power electronics solutions for your EV platform.
Get CatalogCommon technical and sourcing questions answered by our power conversion engineering team.
Proven Expertise, Global Supply Chain Resilience, and Automotive Rigor.
Operating high-speed SMT lines, automated conformal coating stations, robotic potting stations, and climate-controlled cleanroom assembly environments.
Serving mobility OEMs across Europe, North America, Southeast Asia, and South America with localized engineering support and robust supply chain commitments.
100% component-level MES tracking from semiconductor batch numbers to final enclosure torque verification, ensuring zero-defect automotive deliveries.
