DC-DC converters 1 Energy industries & utilities 1 History of engineering & technology 1 Non-minimum phase systems PEMFC NEXA 1200 1 PV generation 1 PV systems 1 Technology: general issues 1 boost converter 1 comparative study 1 constant power load 1 core losses methods 1 dc-dc power electronic converters 1 discontinuous conduction mode 1 energy efficiency 1 experimental validation 1 fabrication 1 ferromagnetic material 1 fractional-order PID controller 1 fuel cell 1 gallium trioxide 1 grid connection 1 hybridization 1 inductors 1 inverter 1 leakage ground current 1 low voltage ride-through (LVRT) 1 multilevel inverter 1 neutral point clamped 1 new equivalent electrical model of fuel cell 1