Sungsik Park,Sewan Choi, “Soft-switched CCM boost converter with high voltage gain for high power applications”
Abstract : This paper proposes a new soft-switched CCM
boost converter suitable for high power applications such as
power factor correction, hybrid electric vehicles and fuel cell
power conversion systems. The proposed converter achieves
ZVS turn-on of active switches in continuous conduction mode
and ZCS turn-off of diodes leading to negligible reverse
recovery loss. The components’ voltage ratings and energy
volumes of passive components of the proposed converter are
greatly reduced compared to the conventional ZVT converter.
Voltage conversion ratio is almost doubled compared to the
conventional boost converter. Extension of the proposed concept
to realize multi-phase DC-DC converters will be discussed.
Experimental results from a 1.5kW prototype are provided to
validate the proposed concept.
Index Terms : soft-switched, non-isolated, high voltage gain,
high power applications, CCM