TC Charger Launches a Brand-New 800V High-Voltage Platform, Achieving Dual Breakthroughs in Technology and Cost

2025-12-09 | Calvin

Amid the growing trend toward high-voltage systems in new energy vehicles, more efficient, compatible, and stable core charging components have become the key to industry upgrades. With over 20 years of deep expertise in the on-board charger (OBC) field, TC Charger has officially launched its brand-new 800V high-voltage platform products, backed by strong technological accumulation and keen market insight. Through continuous innovation in technology and manufacturing processes, the company has achieved major breakthroughs in product functionality, performance, and cost efficiency.

Key Highlights

01 Full-Range Compatibility Design Empowering Cost Reduction and Efficiency Improvement

TC Charger’s new 800V high-voltage platform adopts a full-range compatible architecture and is fully backward compatible with 400V platform products, with a core component compatibility rate exceeding 95%. Its innovative topology design reduces the number of high-voltage-side power devices by half. Combined with magnetic integration solutions and SMT-based production processes, the overall cost structure is further optimized. Even with the voltage platform upgraded to 800V, manufacturing costs remain nearly on par with 400V platforms, with additional room for cost reduction through future large-scale production. In addition, the standardized “module brick” structural design supports flexible installation across multiple vehicle platforms.

02 Optional 100% Domestic Components for a Fully Controllable Supply Chain

The new 800V high-voltage platform offers an optional solution with 100% domestically sourced components, allowing customers to make flexible selections based on their needs. All domestically produced components have undergone rigorous reliability testing and performance validation, with key parameters benchmarked against international standards to ensure stable and controllable product quality. Choosing domestic components not only guarantees stable and timely material supply, but also effectively avoids potential risks such as international logistics fluctuations and technology restrictions—strengthening the independent development of core components in the new energy vehicle industry.

03 Dual Advantages in OBC Size and Efficiency for Flexible Space Adaptation

Thanks to its innovative topology and highly integrated design, the OBC module achieves significant size optimization, reaching an industry-leading power density of 4.5 kW/L. Compared with similar products in the market, it offers clear spatial advantages and allows flexible layout even in space-constrained vehicle models. Supported by SiC devices and soft-switching technology, the maximum efficiency exceeds 96%, maintaining ultra-high energy efficiency across the entire operating range and significantly reducing energy losses.

04 Wide-Range Adaptability for Seamless All-Scenario Compatibility

The OBC output voltage covers an ultra-wide range from 350 VDC to 1000 VDC, making it compatible with vehicles of different voltage levels without the need for additional adaptation to meet diverse charging requirements. At the same time, innovative algorithms are adopted to handle complex grid environments. The bidirectional design supports V2L (Vehicle-to-Load) and V2V (Vehicle-to-Vehicle), with expandability to V2G (Vehicle-to-Grid), turning vehicles into flexible, mobile, distributed energy hubs.

05 Further Upgraded DC Power for Comprehensive Cost Reduction Empowerment

The DC/DC module power has been upgraded to 3.5 kW, with a peak weighted efficiency of up to 95%, perfectly matching the increased demand for low-voltage power supply in vehicles and adapting to diverse driving scenarios. Meanwhile, a DC reverse pre-charge function is reserved, enabling the simplification or elimination of the vehicle’s high-voltage pre-charging circuit, directly contributing to overall vehicle cost reduction.

06 Comprehensive Introduction of ASPICE, Cybersecurity, and Functional Safety Design

TC Charger’s new 800V platform products strictly follow the ASPICE development process standards. Through standardized control across the entire process of requirements definition, design and development, and testing and validation, the consistency and reliability of R&D quality are fully ensured. At the same time, an integrated cybersecurity and functional safety design system is established. Multi-layer protection mechanisms are deployed to defend against malicious attacks and illegal intrusions, ensuring data security on the information side, while multiple strategies are adopted to reduce product failure risks, fully meeting the functional safety level requirements of the whole vehicle.

07 Forward-Looking Technology Layout with Continuous Iteration and Upgrades

Equipped with a fully digital software control architecture and OTA remote firmware upgrade functionality, the system supports continuous performance optimization and iteration according to user needs. With the support of wide-bandgap SiC devices, not only is the high-voltage withstand capability significantly enhanced, but operational stability and durability are also greatly improved through further technological optimization.