Fuel Cell DC-DC Converter
AeroVironment developed and then validated this 60kW DC-DC converter in a hybrid fuel cell vehicle. Its primary function was to condition the fuel cell output to bridge the voltage difference between the fuel cell and the battery pack. Advanced buck-boost topology with high-frequency switching and use of direct lamination cooling technology resulted in high efficiency and high power density. This converter was designed with the following specifications: Specific power of 3.8kW/kg, Power density of 2.8 kW/l, High efficiency of 95%, High Quality DC output (very low ripple).