Commom mode choke core with high permeability can be used as EMC filter core of photovoltaic inverter ( AC side ) . Its high inductance can effectively reduce the numbers of cores . Common mode choke core with low permeability can be used as EMC filter core of photovoltaic inverter ( DC side ) . This kind of core has good frequency characteristic , and it can resist unbalanced DC component and avoid burning .

DC charging post power module converts the three-phase alternating current into direct current voltage 380V to 750V, is fixedly mounted outside the electric vehicle is connected to the AC power grid, providing power supply means is a DC power supply battery of electric vehicle; foreline usually a three-phase the PFC circuit, typically after the modules stage DC\DC LLC three-level power adjustment circuit, the entire power module contains PFC inductor, resonant inductor, EMI filter inductors and transformers.

Nanocrystalline common mode is more and more applied to on-board charger of the battery electric vehicle and Hybrid Electric Vehicle. Even under temperature as high as 180℃ , Nanocrystalline cores can work safely over long term; restricted by the temperature limit of around 100℃, ferrite cores can’t meet the requirement.