Hydrogen fuel cell (HFC) is one of the renewable resources to address fossil fuel depletion and global
warming. Its primary advantages are power is generated from renewable fuel hydrogen and the emission
is only water. However, HFC supplies power in a slow dynamic response. In fuel cell electrical vehicle
(FCEV), energy storage system (ESS), i.e. supercapacitor and battery, is required to immediately
compensate the difference between load demand and power supply; the lifetime of HFC is affected
by current ripple. In order to manage power flow between HFC and load, HFC is interfaced with a
unidirectional DC-DC converter. The converter steps up the terminal fuel cell voltage and regulate the
voltage before it is connected to the load. Among the proposed HFC DC-DC converters, interleaved
DC-DC converter seems more suitable for FCEV application due to its advantages. When galvanic
isolation is required, current fed full bridge converter receives significant consideration as the module
of interleaved converter. This paper simulates interleaved current fed full bridge (ICFFB) converter and
discusses the suitability of ICFFB for FCEV application.