“Range anxiety” and “charging speed” have long been key challenges hindering the widespread adoption of electric vehicles. To achieve long-distance driving range, larger battery capacity and corresponding high-power on-board chargers are needed. However, due to space constraints, on-board chargers must have higher power density and efficiency.
An on-board charger consists of a front-end PFC rectifier and a back-end DC/DC converter. The work of the PMIC Alliance focuses on high-efficiency and high-power density objectives, with research efforts targeting both the front-end PFC rectifier and the back-end DC/DC converter. The main areas of research include:
- Three-phase high-power, high-efficiency, high-power density PFC rectifier
- Three-phase/single-phase compatible PFC rectifier
- Wide voltage range cellular DC/DC converter
These advancements aim to address the challenges of space and efficiency while supporting the growing demand for electric vehicles with higher range and faster charging capabilities.
