CPC H02M 3/156 (2013.01) [H02M 3/33507 (2013.01)] | 20 Claims |
1. A power converter, having at least one first power stage circuit and a second power stage circuit, wherein each of the at least one first power stage circuit comprises:
a) at least one power switch, configured as a main power switch;
b) a first magnetic element;
c) a first energy storage element configured to be coupled to a first node of the first power stage circuit together with one adjacent power stage circuit, and to be charged or discharged through the adjacent power stage circuit;
d) an auxiliary module configured to ensure that a current flowing through the first magnetic element is not less than zero in a current discontinuous mode, wherein the auxiliary module is directly connected between a first terminal of the first energy storage element and a first terminal of the first magnetic element; and
e) wherein a first terminal of the second power stage circuit is coupled to an adjacent first power stage circuit.
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