公开(公告)号：US20250125736A1

公开(公告)日：2025-04-17

申请号：US18895743

申请日：2024-09-25

Applicant: ROLLS-ROYCE PLC

Inventor： David R TRAINER ,  Mark SWEET ,  Cezary P MAKULEC

IPC: H02M3/335 ,  B64D47/00 ,  H02J1/08 ,  H02M1/32 ,  H02M3/00

Abstract: A DC:DC converter includes: a DC:AC converter circuit having DC and AC sides; an AC:DC converter circuit having DC and sides; an AC link connecting the AC side of the DC:AC circuit and the AC side of the AC:DC converter circuit, the AC link including a transformer having a first winding connected to the AC side of the DC:AC converter circuit and a second winding connected to the AC side of the AC:DC converter; a capacitor; and a switch arrangement having a first state and a second state, wherein: in the first state, the capacitor is connected in series between the AC side of the DC:AC converter circuit and the first winding of the transformer; and in the second state, there is a current path between the AC side of the DC:AC converter circuit and the first winding of the transformer that does not include the capacitor.