Half Bridge LLC DC-DC Converter for EV Battery Charger

Abstract

The battery charger is essential to the development of PHEVs (plug-in hybrid electric vehicles) and electric automobiles (EVs). This thesis focuses on the DC-DC converter utilized in high-voltage battery chargers. The background of EV battery chargers is discussed, as well as the topologies of isolated DC- DC converters that could be used in battery charging due to the high voltage and high power of the EV battery charger, LLC and half-bridge converters are frequently utilized in high power applications. They are often believed to have high power density, exceptional dependability, and high efficiency; yet, their most remarkable features are limited to specific working ranges. To fully exploit the benefits of Half-bridge and LLC converters while avoiding their limitations.