Matrix type high step-up ratio LLC resonant converter adopting voltage doubling rectifying circuit

The invention discloses a matrix type high step-up ratio LLC resonant converter adopting a voltage doubling rectifying circuit, and belongs to the technical field of power electronics. The converter is composed of four full-bridge circuits on the low-voltage side, two independent matrix transformers T1 and T2, a resonance network and a voltage doubling rectifying circuit. The T1 primary winding and the T2 primary winding are connected in parallel and are respectively connected with the four full-bridge circuits on the low-voltage side; and the secondary side windings are connected in series and are connected with the high-voltage side resonant cavity network. The voltage doubling rectifying circuit is composed of a diode D1, a diode D2, a capacitor C1 and a capacitor C2. Compared with a full-bridge rectifying circuit, the voltage doubling rectifying circuit is adopted, the voltage at the two ends of the auxiliary inductor Ls can be reduced, and therefore the conduction loss of the four full-bridge circuits on