Current-fed DC/DC converter with reverse block IGBT for fuel cell distributing power system

An overview of DC–DC converter topologies for fuel cell-ultracapacitor hybrid distribution system

“…A phase-shifted full-bridge CFC has been proposed in [58] to achieve ZCS for the bridge switches, as depicted in Fig. 23.…”

“…Passive or active clamps have been presented in [33,37,38,40,[55][56][57][58][59][60][61][62] to achieve zero-voltage switching (ZVS) and reduce or avoid the high voltage stress for the converter switches. Fig.…”