FIELD: electricity.
SUBSTANCE: invention relates to the field of power electronics. A conversion circuit is proposed, which comprises a step-up converter (1), a resonant converter connected to it at the side of the output (2), a transformer (3), a rectifier (4), which is connected to the secondary winding (N2) of the transformer (3) at the output side, and a resonant CLL-circuit (5), which is connected to the resonant converter (2) and the primary winding (N1) of the transformer (3) and comprises a resonant capacitance (C), and also the first and second resonant inductances (L1, L2). The resonant CLL-circuit (5) is arranged in the form of a T-shaped circuit.
EFFECT: reduced switching losses.
10 cl, 6 dwg
