A stacked high gain DC-DC converter based on multiple coupled switching inductors

This paper presents a high gain DC-DC converter based on multiple coupled switching inductors. The converter adopts a structure with three switching inductor units connected in series with a switching capacitor unit. Due to the conduction characteristics of the diodes, the primary sides of the three coupled inductors alternately operate in parallel and series states with the switching actions of the transistor. Furthermore, the proposed converter utilizes only a single switch, which simplifies the control strategy of the converter. Finally, in order to verify the conclusions obtained from the theoretical analysis, a prototype with an input voltage of 25V, an output voltage of 362V, and a rated power of 120W is constructed.