Integrated OBC+DC-DC Converter Combo Units for Electric Vehicles
We provide integrated OBC+DC-DC converter combo units that combine an on board charger and DC-DC converter into a single power electronics unit. By integrating AC charging conversion and high-voltage to low-voltage power conversion functions, the solution helps optimize vehicle packaging, reduce system weight, and improve overall power system efficiency.
Available in air-cooled and liquid-cooled configurations, our integrated OBC+DC-DC converters support different EV architectures, including 800V high-voltage platforms. Selected models also support bidirectional functions such as Vehicle-to-Load (V2L).
With mature solutions already applied in domestic and international OEM vehicle projects and exported to markets including Europe, Jenwyn Tech provides reliable power electronics solutions for passenger EVs, commercial vehicles, and specialty vehicle applications.
Integrated & Space-Saving Design
Combines OBC+DC-DC converter functions into one unit, reducing system complexity, installation space, and vehicle integration requirements.
High Power Density & Energy Efficiency
Designed to meet the increasing demand for lightweight vehicle systems, efficient charging, and optimized energy conversion in modern EV platforms.
High-Voltage Platform Compatibility
Supports advanced EV architectures including 800V high-voltage platforms, with selected models offering bidirectional power functions for expanded energy applications.
OBC+DC-DC Converter Combo Units Portfolio
Typical Applications
- Electric Logistics Vehicles: 1.5~2 kW DC-DC + 3.3~6.6 kW OBC
- Electric Sanitation Vehicles: 1.5~3 kW DC-DC + 3.3~11 kW OBC
- Passenger EVs: 1.5~3 kW DC-DC + 3.3~11 kW OBC + PDU (Optional)
|
OBC Power
|
OBC Output Voltage
|
DC-DC Power
|
DC-DC Output Voltage
|
Cooling Method
|
Dimension
|
Weight
|
PDU
|
|---|---|---|---|---|---|---|---|
|
3.3 kW
|
50-450 VDC
|
1 kW
|
14 V
|
Air cooled
|
256*290*94 mm
|
5.5 kg
|
-
|
|
6.6 kW
|
95-450 VDC
|
1.5 kW
|
14 V
|
Air / Liquid cooled
|
291*380*87 mm
|
8.7 kg
|
-
|
|
6.6 kW
|
200-450 VDC
|
2 kW
|
14 V
|
Liquid cooled
|
291*380*87 mm
|
8.8 kg
|
-
|
|
3.3 kW
|
95-450 VDC
|
1.5 kW
|
14 V
|
Liquid cooled
|
244*317*68 mm
|
5.8 kg
|
-
|
|
6.6 kW
|
250-460 VDC
|
2 kW
|
14 V
|
Liquid cooled
|
321*227*79 mm
|
5.8 kg
|
Yes
|
|
6.6 kW
|
270-450 VDC
|
2 kW
|
14 V
|
Liquid cooled
|
279*202*68 mm
|
5.8 kg
|
-
|
|
6.6 kW
|
360-785 VDC
|
3 kW
|
14 V
|
Liquid cooled
|
296*212*74 mm
|
5.8 kg
|
-
|
|
6.6 kW (1φ) / 9.9 kW (3φ)
|
350-800 VDC
|
3 kW
|
14 V
|
Liquid cooled
|
310*219*111 mm
|
9.2 kg
|
-
|
|
6.6 kW (1φ) / 9.9 kW (3φ)
|
200-450 VDC
|
2.5 kW
|
14 V
|
Liquid cooled
|
312.8*218.2*110 mm
|
9.1 kg
|
-
|
|
6.6 kW
|
400-900 VDC
|
3 kW
|
14 V
|
Liquid cooled
|
331.84*252.5*75.4 mm
|
6 kg
|
-
|
|
6.6 kW (1φ) / 9.9 kW (3φ)
|
230-500 VDC
|
2.5 kW
|
14 V
|
Liquid cooled
|
351*350*111.5 mm
|
10.2 kg
|
Yes
|
|
6.6 kW
|
200-420 VDC
|
2.5 kW
|
14 V
|
Liquid cooled
|
346*342*168 mm
|
20 kg
|
Yes
|
* Note: For products with the same power rating, the above specifications summarize the available input and output voltage ranges. Detailed configurations and voltage combinations are available upon request. Please contact our engineering team for further information: contact@jenwyntech.com
Why Choose Our OBC+DC-DC Converter Combo Units
Integrated Charging and Power Conversion
Integrates OBC and DC-DC functions and PDU (optional) within a single power electronics platform. The OBC converts AC grid power into DC power for high-voltage battery charging, while the DC-DC converter provides low-voltage power supply for vehicle auxiliary systems.
Flexible Power Management
In OBC charging mode, output power distribution between high-voltage and low-voltage systems can be configured according to vehicle requirements. Selected models support DC-AC operation with a 3.3kW output capability.
Advanced Thermal Management Design
Features an integrated die-cast housing with patented 3D cooling channel design, supporting efficient thermal management for liquid-cooled configuration.
Vehicle System Integration Support
Supports CAN 2.0B communication and UDS diagnostic development. Software parameters and charging strategies can be configured and updated according to application requirements.
Automotive-Grade Reliability
Designed with electrical isolation, EMC compliance, and comprehensive protection functions to support reliable operation under different vehicle operating conditions.
Manufacturing and Quality Assurance
We operate a structured manufacturing and quality management system based on standards such as IATF 16949 and ISO 9001. From component sourcing and PCBA production to final assembly and functional testing, each production stage is managed through defined processes and traceability systems to support consistent product quality and reliable delivery.
Manufacturing Process Control
Our production processes incorporate comprehensive control procedures throughout SMT, PCBA assembly, and final product manufacturing, including:
- Component traceability and material verification
- SMT process monitoring and inspection
- SPI and AOI inspection
- PCBA process tracking
- Assembly process control
Comprehensive Testing and Traceability
Each CDU undergoes functional testing and quality inspection before delivery. Manufacturing data, test results, and repair records are maintained. Testing capabilities include:
- ICT functional testing
- ATE performance testing
- Finished product inspection
- Failure analysis and corrective actions
- Repair and rework record tracking
- OQA inspection
Production Data Management
Our production data management system provides full traceability throughout the manufacturing process, covering components, semi-finished products, and finished products. The system enables efficient tracking of:
- Material and component information
- Production process records
- Functional test results
- Product quality history
- Repair and rework records
Engineering Support for EV System Integration
Successful EV projects require effective technical communication between vehicle developers and system suppliers. We provide technical support for our EV systems, including product documentation, interface information, communication protocols, and engineering assistance during system integration.
Our support helps customers better understand system requirements, address technical issues during development and testing, and improve integration efficiency throughout the project lifecycle.
Our support includes:
- Review EV system configurations and identify potential risks
- Discuss vehicle requirements, interfaces, and application conditions
- Provide 3D and STEP files for layout and mechanical fit assessment
- Support sample installation, commissioning, and validation
- Support fault diagnosis and system troubleshooting
- Provide continuous technical communication throughout the project
Global Delivery & Application
Frequently Asked Questions
Yes. Selected OBC+DC-DC converter models support high-voltage EV architectures, including 800V platforms.
The available voltage range depends on the specific product configuration. Our engineering team can provide detailed technical specifications for different vehicle platforms.
Selected models support bidirectional functions such as Vehicle-to-Load (V2L).
Please contact our engineering team for detailed information.
Our integrated OBC+DC-DC converter units support CAN 2.0B communication and UDS diagnostic development.
Yes. Jenwyn Tech’s OBC+DC-DC converter solutions have been applied in domestic and international OEM vehicle projects, supporting both prototype development and mass production requirements.
Our manufacturing and quality management processes support stable production and long-term supply for electric vehicle applications.
Selected configurations can support integration with PDU functions according to system requirements.
Combining multiple power electronics components into an integrated solution can help optimize system layout, reduce installation complexity, and improve vehicle packaging efficiency.
Typical production lead time is approximately 60 days, depending on product configuration, order quantity, and production scheduling. Please contact our sales team for project-specific delivery schedules.