Multi-Functional High-Power-Density Integrated Onboard Charger for Electric Vehicles

Electric vehicles are usually charged using conductive (plug-in) charging. However, wireless charging is becoming more popular and has many advantages. Future electric vehicles are expected to have both conductive and wireless chargers. Very few solutions currently combine both types of chargers. Those that do have disadvantages such as a large number of components, an inefficient conductive charger, or a slow charging time because it is not possible to energise both chargers at the same time.

This new multi-functional integrated on-board charger (IOBC) overcomes these problems by offering both conductive and wireless charging in one compact design. By sharing the pickup coil of the wireless charger with the conductive charger, the IOBC does not need additional components and can control both chargers independently. This achieves efficient, simultaneous power transfer with minimal components, volume, and cost.