公开(公告)号：US20180183344A1

公开(公告)日：2018-06-28

申请号：US15846324

申请日：2017-12-19

Applicant: TDK CORPORATION

Inventor： Kazuki IWAYA ,  Hiroshige YANAGI ,  Natsumi OGAWA ,  Toshimasa MIYAZAKI

IPC: H02M3/335 ,  H02M1/08

CPC classification number: H02M3/33584 ,  H02M1/081 ,  H02M3/33592 ,  H02M2001/009

Abstract: A converter apparatus includes: a first transformer with two windings; a first full-bridge circuit with four switches, DC input/output units connected to a first DC power supply, and AC input/output units connected via an inductor to one winding of the first transformer; a second full-bridge circuit with four switches, DC input/output units connected to a second DC power supply, and AC input/output units connected via an inductor to another winding of the first transformer; a second transformer with two windings, one being connected via an inductor to the AC input/output units of the first circuit; a third full-bridge circuit with four switches, DC input/output units connected to a third DC power supply, and AC input/output units connected via an inductor to another winding of the second transformer; and a control unit for controlling the switches to supply power between the first to third DC power supplies.