A novel ZVS resonant reset dual switch forward DC/DC converter

Paper presents a new topology named ZVS resonant reset dual switch forward DC/DC converter, which, compared with resonant reset single switch forward DC/DC converter, maintains the advantage that duty cycle can be more than 50%, at the same time disadvantages of high voltage stress for main switches and low efficiency are overcome. In addition, soft switching is achieved for all switches of the presented topology. Therefore, this proposed topology is very attractive for high input, wide range and high efficiency applications. In this paper, the operation principle and characteristic of this topology are analyzed in detail. Finally, the advantages mentioned above are verified by experimental result.