Patent ID: 11923758
Assignee: DELTA ELECTRONICS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power conversion circuit, comprising:
an input positive terminal, an input negative terminal, an output positive terminal and an output negative terminal, wherein the input negative terminal and the output negative terminal are connected with each other;
a first bridge arm comprising a first switch, a second switch, a third switch and a fourth switch, which are connected in series between the input positive terminal and the input negative terminal, wherein the first switch and the second switch are connected with a first node, the second switch and the third switch are connected with a second node, and the third switch and the fourth switch are connected with a third node;
a second bridge arm comprising a fifth switch, a sixth switch, a seventh switch and an eighth switch, which are connected in series between the input positive terminal and the input negative terminal, wherein the fifth switch and the sixth switch are connected with a fourth node, the sixth switch and the seventh switch are connected with a fifth node, and the seventh switch and the eighth switch are connected with a sixth node;
a transformer comprising a first winding, a second winding and a third winding, which are coupled with each other, wherein the second winding is electrically connected between the third node and the output positive terminal, and the third winding is electrically connected with the sixth node and the output positive terminal;
a first resonant capacitor, wherein the first resonant capacitor and the first winding are connected in series between the second node and the fifth node;
a second resonant capacitor electrically connected between the first node and the third node;
a third resonant capacitor electrically connected between the fourth node and the sixth node; and
an output capacitor electrically connected between the output positive terminal and the output negative terminal.