ABSTRACT
The automotive industry globally is witnessing a major transformation due to research and development on transportation electrification. Growing concerns for the environment and energy security clubbed with rapid advancements in technologies for powertrain electrification are transforming the automotive business. AC-DC converters are an essential part of the battery chargers in order to convert AC voltage to stiff DC. Diode rectification is one of the most common ways which is implemented in current chargers but draws discontinuous peaky current. This chapter compares various AC-DC topologies available for battery charger application with a detailed description comparing trade-offs of AC-DC topologies. The converter is operating in DCM mode to achieve natural PFC at AC mains. The converter utilizes a center tap transformer along with synchronous rectification on the transformer secondary to enhance the overall efficiency and decrease the cost of the charger.
