Author: Vijay
-
Electric Vehicle (EV) Charger – Power Factor Correction (PFC) Topologies for AC-DC Converter Stage
There are many topologies which can be used for power factor improvement in the AC-DC converter stage of electric vehicle chargers Diode Rectifier + Boost PFC Converter: This is the basic PFC converter which is combination of diode bridge rectifier and boost converter. Simple structure and simple control due to single switch in boost converter.…
-
Electric Vehicle (EV) – Resonant Power Converter Topologies for DC-DC power converter stage
DC-DC converter is an important stage of any EV charger. Resonant converters are most preferred DC-DC converter in EV chargers segment because of in-built features like below other than the isolation The block diagrammatic representation of any resonant power converter is shown below. It consist of The most common resonant converter topologies have been using…
-
Electric Vehicle (EV) Charger – Power Module stages (AC-DC stage and DC-DC stage) and Benficial Power Converter Topologies
EV charger (either it is on-board or off-board) mainly consist of two power modules as shown below Any electrical system/module primary requires, Grid is an AC source, battery is a DC source. To charge the battery AC should be converter into DC for that purpose, AC – DC converter is must. The rectified voltage can…
-
Classification of Electric Vehicle (EV) Chargers based on Power Levels, Source type, and its Placing
Any electric vehicle (EV) charger can be classified based on its placing, source and speed as shown in below. Based on Charger Placement On-board Charger: It means the charger is equipped inside the vehicle. Only one supply cable (AC) comes to vehicle port for connecting with charger and then charge the battery pack which are…
