Suzhou Inovance Automotive Systems Co., Ltd. and Innoscience (Suzhou) Technology Co., Ltd. announced that their next-generation 6.6kW on-board charger system, built on 650V GaN devices, has been successfully integrated into Changan vehicles. The result is a step change in charging efficiency and power density, raising the bar for automotive power electronics.
Inovance Automotive’s two-in-one architecture combines the on-board charger and DC-DC converter in a single unit. By pairing a globally optimized efficiency design with Innoscience’s 650V high-voltage GaN devices—known for ultra-low switching loss and high-frequency performance—the system delivers measurable gains:
· 30% increase in power density, reaching 4.8 kW/L
· Over 2% improvement in overall efficiency compared with similar products
· 20% reduction in system weight, supporting industry goals for higher efficiency and lightweight design
The jointly developed 6.6kW GaN OBC solution also improves vehicle packaging by saving space and enhancing integration flexibility at the platform level. Higher conversion efficiency shortens charging time for drivers and contributes to meaningful energy savings, ultimately supporting extended driving range.
Deploying this GaN-based OBC system in Changan vehicles marks a milestone for GaN in automotive power systems—a breakthrough that strengthens both Inovance Automotive and Innoscience as they expand in the EV sector. The companies plan to continue their collaboration to accelerate the shift toward higher efficiency and greater sustainability across next-generation electric vehicles.
Original – Innoscience Technology