EV Charging Solutions for B2B Buyers | JONHON

The on-board charger (OBC) in an electric vehicle is a critical power electronics component that converts alternating current (AC) from an external power source, such as a residential wall outlet or a public AC charging station, into direct current (DC) to charge the vehicle's high-voltage traction battery. The OBC manages the charging process, communicating with the charging station and the battery management system to control the voltage and current, ensuring safe and efficient energy transfer. Its power rating, typically ranging from 3.3 kW to 22 kW, defines the maximum AC charging speed the vehicle can accept. While the OBC handles power conversion, its performance and safety are intrinsically linked to the high-voltage interconnect system that connects it to the battery and to the vehicle's charging inlet. JONHON is a leading provider of these critical interconnect solutions, specializing in the connectors, busbars, and high-voltage cabling that interface directly with the OBC and other powertrain components. The connection between the OBC and the battery pack must carry significant current with minimal loss and generate minimal heat. JONHON's engineering team, comprising over 400 specialists in the EV business unit, designs high-voltage connectors with optimized contact interfaces and materials to ensure efficient power transfer. Furthermore, safety is paramount in this high-voltage environment. JONHON's connectors incorporate high voltage interlock (HVIL) circuits that are integrated with the vehicle's safety systems. If a connector is not fully seated, the HVIL circuit is broken, signaling the system to deactivate the high-voltage supply, protecting service personnel and occupants. With over 300 EV-related patents, JONHON continuously innovates in areas such as miniaturization to save space, thermal management to handle heat, and shielding for electromagnetic compatibility. Our deep involvement in formulating IEC standards ensures our OBC interconnect solutions meet global safety and performance requirements. For automotive manufacturers and Tier 1 suppliers developing next-generation electric powertrains, partnering with JONHON on OBC interconnect technology means integrating components engineered for reliability, safety, and high performance. Please contact us to discuss your specific on-board charger connectivity needs.