Performance enhanced BLIL PFC boost converter for PHEV battery chargers

AC to DC converters are the key component in battery chargers of plug in hybrid electric vehicle. DC to DC converter in the above mentioned charger will step up or step down the voltage according to the requirement of the battery. Conventional power factor corrected boost converter used for the purpose of AC to DC conversion have disadvantages like low power factor and high value of total harmonic distortion. These disadvantages can be eliminated in Bridgeless Interleaved power factor corrected boost converter. Self commutating devices are used in these converters for the purpose of switching according to load rating. A protection circuit is provided which will isolate the converter from supply when current in load goes above the rated value of load current.