Current doubler rectifier DC/DC converter circuit

The circuit schematic diagram of the current-doubling rectification low-voltage high-current DC-DC converter is shown in the figure. The primary side adopts a symmetrical half-bridge structure, and the secondary side adopts a current-doubling rectification structure. When S1 is turned on, SR1 must be turned off, and L1 is charged; When S2 is turned on, SR2 must be turned off and L2 is charged, so that the filter inductor current will be superimposed on the filter capacitor. Figure 2 shows the switching control strategy.