Steady-state analysis of zero-voltage transition low input current ripple fourth-order boost converter

A zero-voltage transition low source current fourth order boost converter is proposed in this paper. It provides voltage gain close to conventional boost converter and reduced source current ripple. A new zero-voltage transition cell is proposed, which works with synchronized main and auxiliary gating scheme. In comparison to the conventional zero-voltage transition cell reported in literature the proposed one is simple and also yields soft-switching performance identical to the conventional cell without needing any overlap duty ratio. Various modes of operation are identified and a steady-state analysis is established. In order to verify the effectiveness of the proposed zero-voltage turn-ON transition feature PSIM simulations are carried out and then verified through experiments. A 12 to 28 V, 30 Watt prototype is considered both in simulation and experiment. Simulation and experimental results are in close agreement with each other.